diff --git a/.circleci/config.yml b/.circleci/config.yml
index 0c13998..280d7be 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -1,20 +1,24 @@
 version: 2.0
 
+checkout:
+  post:
+    - ./ci-support/checkout_merge_commit.sh
+
 jobs:
   build:
     macos:
       xcode: "9.2.0"
     steps:
+      - checkout
       - run:
-          name: Pre install script for mac OS
+          name: debug
           command: |
-            ls
-            pwd
-            bash vcdat/ci-support/circleci_mac_machine_pre.sh
+            echo $PATH > path_file
+            cat path_file
       - run:
-          name: Checkout merge commit
+          name: Pre install script for mac OS
           command: |
-            ./ci-support/checkout_merge_commit.sh
+            bash ./ci-support/circleci_mac_machine_pre.sh
       - run:
           name: Install dependencies
           command: |
diff --git a/ci-support/circleci_mac.sh b/ci-support/circleci_mac.sh
index b262f5c..5e51fbe 100644
--- a/ci-support/circleci_mac.sh
+++ b/ci-support/circleci_mac.sh
@@ -1,6 +1,16 @@
+
+# Exit script if you try to use an uninitialized variable.
+set -o nounset
+
+# Exit script if a statement returns a non-true return value.
+set -o errexit
+
+# Use the error status of the first failure, rather than that of the last item in a pipeline.
+set -o pipefail
+
 export UVCDAT_ANONYMOUS_LOG=False
-export UVCDAT_SETUP_PATH=${HOME}
 export PATH=${HOME}/miniconda/bin:${PATH}
+
 cd frontend
 npm install
 cd ..
@@ -9,9 +19,9 @@ cd frontend
 npm run coverage
 RESULT=$?
 npm run coveralls
-RESULT=$RESULT + $?
+RESULT=$(($RESULT + $?))
 cd ..
-echo "test commands exit result:",$RESULT
+echo "test commands exit result: $RESULT"
 if [ $RESULT -eq 0 -a $CIRCLE_BRANCH == "master" ]; then conda install -n root conda-build anaconda-client ; fi
 if [ $RESULT -eq 0 -a $CIRCLE_BRANCH == "master" ]; then bash ./ci-support/conda_upload.sh ; fi
 exit $RESULT
diff --git a/frontend/package-lock.json b/frontend/package-lock.json
index db558ce..9c47c6c 100644
--- a/frontend/package-lock.json
+++ b/frontend/package-lock.json
@@ -156,9 +156,9 @@
       "dev": true
     },
     "are-we-there-yet": {
-      "version": "1.1.4",
-      "resolved": "https://registry.npmjs.org/are-we-there-yet/-/are-we-there-yet-1.1.4.tgz",
-      "integrity": "sha1-u13KOCu5TwXhUZQ3PRb9O6HKEQ0=",
+      "version": "1.1.5",
+      "resolved": "https://registry.npmjs.org/are-we-there-yet/-/are-we-there-yet-1.1.5.tgz",
+      "integrity": "sha512-5hYdAkZlcG8tOLujVDTgCT+uPX0VnpAH28gWsLfzpXYm7wP6mp5Q/gYyR7YQ0cKVJcXJnl3j2kpBan13PtQf6w==",
       "dev": true,
       "requires": {
         "delegates": "1.0.0",
@@ -4149,16 +4149,16 @@
         "signal-exit": "3.0.2",
         "string-width": "1.0.2",
         "strip-ansi": "3.0.1",
-        "wide-align": "1.1.2"
+        "wide-align": "1.1.3"
       }
     },
     "gaze": {
-      "version": "1.1.2",
-      "resolved": "https://registry.npmjs.org/gaze/-/gaze-1.1.2.tgz",
-      "integrity": "sha1-hHIkZ3rbiHDWeSV+0ziP22HkAQU=",
+      "version": "1.1.3",
+      "resolved": "https://registry.npmjs.org/gaze/-/gaze-1.1.3.tgz",
+      "integrity": "sha512-BRdNm8hbWzFzWHERTrejLqwHDfS4GibPoq5wjTPIoJHoBtKGPg3xAFfxmM+9ztbXelxcf2hwQcaz1PtmFeue8g==",
       "dev": true,
       "requires": {
-        "globule": "1.2.0"
+        "globule": "1.2.1"
       }
     },
     "generate-function": {
@@ -4279,14 +4279,22 @@
       }
     },
     "globule": {
-      "version": "1.2.0",
-      "resolved": "https://registry.npmjs.org/globule/-/globule-1.2.0.tgz",
-      "integrity": "sha1-HcScaCLdnoovoAuiopUAboZkvQk=",
+      "version": "1.2.1",
+      "resolved": "https://registry.npmjs.org/globule/-/globule-1.2.1.tgz",
+      "integrity": "sha512-g7QtgWF4uYSL5/dn71WxubOrS7JVGCnFPEnoeChJmBnyR9Mw8nGoEwOgJL/RC2Te0WhbsEUCejfH8SZNJ+adYQ==",
       "dev": true,
       "requires": {
         "glob": "7.1.2",
-        "lodash": "4.17.5",
+        "lodash": "4.17.10",
         "minimatch": "3.0.4"
+      },
+      "dependencies": {
+        "lodash": {
+          "version": "4.17.10",
+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.10.tgz",
+          "integrity": "sha512-UejweD1pDoXu+AD825lWwp4ZGtSwgnpZxb3JDViD7StjQz+Nb/6l093lx4OQ0foGWNRoc19mWy7BzL+UAK2iVg==",
+          "dev": true
+        }
       }
     },
     "graceful-fs": {
@@ -5669,7 +5677,8 @@
       "version": "2.9.2",
       "resolved": "https://registry.npmjs.org/nan/-/nan-2.9.2.tgz",
       "integrity": "sha512-ltW65co7f3PQWBDbqVvaU1WtFJUsNW7sWWm4HINhbMQIyVyzIeyZ8toX5TC5eeooE6piZoaEh4cZkueSKG3KYw==",
-      "dev": true
+      "dev": true,
+      "optional": true
     },
     "nearley": {
       "version": "2.13.0",
@@ -5711,92 +5720,35 @@
       }
     },
     "node-gyp": {
-      "version": "3.6.2",
-      "resolved": "https://registry.npmjs.org/node-gyp/-/node-gyp-3.6.2.tgz",
-      "integrity": "sha1-m/vlRWIoYoSDjnUOrAUpWFP6HGA=",
+      "version": "3.7.0",
+      "resolved": "https://registry.npmjs.org/node-gyp/-/node-gyp-3.7.0.tgz",
+      "integrity": "sha512-qDQE/Ft9xXP6zphwx4sD0t+VhwV7yFaloMpfbL2QnnDZcyaiakWlLdtFGGQfTAwpFHdpbRhRxVhIHN1OKAjgbg==",
       "dev": true,
       "requires": {
         "fstream": "1.0.11",
         "glob": "7.1.2",
         "graceful-fs": "4.1.11",
-        "minimatch": "3.0.4",
         "mkdirp": "0.5.1",
         "nopt": "3.0.6",
         "npmlog": "4.1.2",
         "osenv": "0.1.5",
-        "request": "2.83.0",
+        "request": "2.81.0",
         "rimraf": "2.6.2",
         "semver": "5.3.0",
         "tar": "2.2.1",
         "which": "1.3.0"
       },
       "dependencies": {
-        "semver": {
-          "version": "5.3.0",
-          "resolved": "https://registry.npmjs.org/semver/-/semver-5.3.0.tgz",
-          "integrity": "sha1-myzl094C0XxgEq0yaqa00M9U+U8=",
-          "dev": true
-        }
-      }
-    },
-    "node-libs-browser": {
-      "version": "2.1.0",
-      "resolved": "https://registry.npmjs.org/node-libs-browser/-/node-libs-browser-2.1.0.tgz",
-      "integrity": "sha512-5AzFzdoIMb89hBGMZglEegffzgRg+ZFoUmisQ8HI4j1KDdpx13J0taNp2y9xPbur6W61gepGDDotGBVQ7mfUCg==",
-      "dev": true,
-      "requires": {
-        "assert": "1.4.1",
-        "browserify-zlib": "0.2.0",
-        "buffer": "4.9.1",
-        "console-browserify": "1.1.0",
-        "constants-browserify": "1.0.0",
-        "crypto-browserify": "3.12.0",
-        "domain-browser": "1.2.0",
-        "events": "1.1.1",
-        "https-browserify": "1.0.0",
-        "os-browserify": "0.3.0",
-        "path-browserify": "0.0.0",
-        "process": "0.11.10",
-        "punycode": "1.4.1",
-        "querystring-es3": "0.2.1",
-        "readable-stream": "2.3.4",
-        "stream-browserify": "2.0.1",
-        "stream-http": "2.8.0",
-        "string_decoder": "1.0.3",
-        "timers-browserify": "2.0.6",
-        "tty-browserify": "0.0.0",
-        "url": "0.11.0",
-        "util": "0.10.3",
-        "vm-browserify": "0.0.4"
-      }
-    },
-    "node-sass": {
-      "version": "4.7.2",
-      "resolved": "https://registry.npmjs.org/node-sass/-/node-sass-4.7.2.tgz",
-      "integrity": "sha512-CaV+wLqZ7//Jdom5aUFCpGNoECd7BbNhjuwdsX/LkXBrHl8eb1Wjw4HvWqcFvhr5KuNgAk8i/myf/MQ1YYeroA==",
-      "dev": true,
-      "requires": {
-        "async-foreach": "0.1.3",
-        "chalk": "1.1.3",
-        "cross-spawn": "3.0.1",
-        "gaze": "1.1.2",
-        "get-stdin": "4.0.1",
-        "glob": "7.1.2",
-        "in-publish": "2.0.0",
-        "lodash.assign": "4.2.0",
-        "lodash.clonedeep": "4.5.0",
-        "lodash.mergewith": "4.6.1",
-        "meow": "3.7.0",
-        "mkdirp": "0.5.1",
-        "nan": "2.9.2",
-        "node-gyp": "3.6.2",
-        "npmlog": "4.1.2",
-        "request": "2.79.0",
-        "sass-graph": "2.2.4",
-        "stdout-stream": "1.4.0",
-        "true-case-path": "1.0.2"
-      },
-      "dependencies": {
+        "ajv": {
+          "version": "4.11.8",
+          "resolved": "https://registry.npmjs.org/ajv/-/ajv-4.11.8.tgz",
+          "integrity": "sha1-gv+wKynmYq5TvcIK8VlHcGc5xTY=",
+          "dev": true,
+          "requires": {
+            "co": "4.6.0",
+            "json-stable-stringify": "1.0.1"
+          }
+        },
         "assert-plus": {
           "version": "0.2.0",
           "resolved": "https://registry.npmjs.org/assert-plus/-/assert-plus-0.2.0.tgz",
@@ -5818,22 +5770,6 @@
             "hoek": "2.16.3"
           }
         },
-        "caseless": {
-          "version": "0.11.0",
-          "resolved": "https://registry.npmjs.org/caseless/-/caseless-0.11.0.tgz",
-          "integrity": "sha1-cVuW6phBWTzDMGeSP17GDr2k99c=",
-          "dev": true
-        },
-        "cross-spawn": {
-          "version": "3.0.1",
-          "resolved": "https://registry.npmjs.org/cross-spawn/-/cross-spawn-3.0.1.tgz",
-          "integrity": "sha1-ElYDfsufDF9549bvE14wdwGEuYI=",
-          "dev": true,
-          "requires": {
-            "lru-cache": "4.1.1",
-            "which": "1.3.0"
-          }
-        },
         "cryptiles": {
           "version": "2.0.5",
           "resolved": "https://registry.npmjs.org/cryptiles/-/cryptiles-2.0.5.tgz",
@@ -5854,16 +5790,20 @@
             "mime-types": "2.1.18"
           }
         },
+        "har-schema": {
+          "version": "1.0.5",
+          "resolved": "https://registry.npmjs.org/har-schema/-/har-schema-1.0.5.tgz",
+          "integrity": "sha1-0mMTX0MwfALGAq/I/pWXDAFRNp4=",
+          "dev": true
+        },
         "har-validator": {
-          "version": "2.0.6",
-          "resolved": "https://registry.npmjs.org/har-validator/-/har-validator-2.0.6.tgz",
-          "integrity": "sha1-zcvAgYgmWtEZtqWnyKtw7s+10n0=",
+          "version": "4.2.1",
+          "resolved": "https://registry.npmjs.org/har-validator/-/har-validator-4.2.1.tgz",
+          "integrity": "sha1-M0gdDxu/9gDdID11gSpqX7oALio=",
           "dev": true,
           "requires": {
-            "chalk": "1.1.3",
-            "commander": "2.14.1",
-            "is-my-json-valid": "2.17.2",
-            "pinkie-promise": "2.0.1"
+            "ajv": "4.11.8",
+            "har-schema": "1.0.5"
           }
         },
         "hawk": {
@@ -5895,26 +5835,32 @@
             "sshpk": "1.13.1"
           }
         },
+        "performance-now": {
+          "version": "0.2.0",
+          "resolved": "https://registry.npmjs.org/performance-now/-/performance-now-0.2.0.tgz",
+          "integrity": "sha1-M+8wxcd9TqIcWlOGnZG1bY8lVeU=",
+          "dev": true
+        },
         "qs": {
-          "version": "6.3.2",
-          "resolved": "https://registry.npmjs.org/qs/-/qs-6.3.2.tgz",
-          "integrity": "sha1-51vV9uJoEioqDgvaYwslUMFmUCw=",
+          "version": "6.4.0",
+          "resolved": "https://registry.npmjs.org/qs/-/qs-6.4.0.tgz",
+          "integrity": "sha1-E+JtKK1rD/qpExLNO/cI7TUecjM=",
           "dev": true
         },
         "request": {
-          "version": "2.79.0",
-          "resolved": "https://registry.npmjs.org/request/-/request-2.79.0.tgz",
-          "integrity": "sha1-Tf5b9r6LjNw3/Pk+BLZVd3InEN4=",
+          "version": "2.81.0",
+          "resolved": "https://registry.npmjs.org/request/-/request-2.81.0.tgz",
+          "integrity": "sha1-xpKJRqDgbF+Nb4qTM0af/aRimKA=",
           "dev": true,
           "requires": {
             "aws-sign2": "0.6.0",
             "aws4": "1.6.0",
-            "caseless": "0.11.0",
+            "caseless": "0.12.0",
             "combined-stream": "1.0.6",
             "extend": "3.0.1",
             "forever-agent": "0.6.1",
             "form-data": "2.1.4",
-            "har-validator": "2.0.6",
+            "har-validator": "4.2.1",
             "hawk": "3.1.3",
             "http-signature": "1.1.1",
             "is-typedarray": "1.0.0",
@@ -5922,13 +5868,21 @@
             "json-stringify-safe": "5.0.1",
             "mime-types": "2.1.18",
             "oauth-sign": "0.8.2",
-            "qs": "6.3.2",
+            "performance-now": "0.2.0",
+            "qs": "6.4.0",
+            "safe-buffer": "5.1.1",
             "stringstream": "0.0.5",
             "tough-cookie": "2.3.4",
-            "tunnel-agent": "0.4.3",
+            "tunnel-agent": "0.6.0",
             "uuid": "3.2.1"
           }
         },
+        "semver": {
+          "version": "5.3.0",
+          "resolved": "https://registry.npmjs.org/semver/-/semver-5.3.0.tgz",
+          "integrity": "sha1-myzl094C0XxgEq0yaqa00M9U+U8=",
+          "dev": true
+        },
         "sntp": {
           "version": "1.0.9",
           "resolved": "https://registry.npmjs.org/sntp/-/sntp-1.0.9.tgz",
@@ -5937,12 +5891,110 @@
           "requires": {
             "hoek": "2.16.3"
           }
+        }
+      }
+    },
+    "node-libs-browser": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/node-libs-browser/-/node-libs-browser-2.1.0.tgz",
+      "integrity": "sha512-5AzFzdoIMb89hBGMZglEegffzgRg+ZFoUmisQ8HI4j1KDdpx13J0taNp2y9xPbur6W61gepGDDotGBVQ7mfUCg==",
+      "dev": true,
+      "requires": {
+        "assert": "1.4.1",
+        "browserify-zlib": "0.2.0",
+        "buffer": "4.9.1",
+        "console-browserify": "1.1.0",
+        "constants-browserify": "1.0.0",
+        "crypto-browserify": "3.12.0",
+        "domain-browser": "1.2.0",
+        "events": "1.1.1",
+        "https-browserify": "1.0.0",
+        "os-browserify": "0.3.0",
+        "path-browserify": "0.0.0",
+        "process": "0.11.10",
+        "punycode": "1.4.1",
+        "querystring-es3": "0.2.1",
+        "readable-stream": "2.3.4",
+        "stream-browserify": "2.0.1",
+        "stream-http": "2.8.0",
+        "string_decoder": "1.0.3",
+        "timers-browserify": "2.0.6",
+        "tty-browserify": "0.0.0",
+        "url": "0.11.0",
+        "util": "0.10.3",
+        "vm-browserify": "0.0.4"
+      }
+    },
+    "node-sass": {
+      "version": "4.9.2",
+      "resolved": "https://registry.npmjs.org/node-sass/-/node-sass-4.9.2.tgz",
+      "integrity": "sha512-LdxoJLZutx0aQXHtWIYwJKMj+9pTjneTcLWJgzf2XbGu0q5pRNqW5QvFCEdm3mc5rJOdru/mzln5d0EZLacf6g==",
+      "dev": true,
+      "requires": {
+        "async-foreach": "0.1.3",
+        "chalk": "1.1.3",
+        "cross-spawn": "3.0.1",
+        "gaze": "1.1.3",
+        "get-stdin": "4.0.1",
+        "glob": "7.1.2",
+        "in-publish": "2.0.0",
+        "lodash.assign": "4.2.0",
+        "lodash.clonedeep": "4.5.0",
+        "lodash.mergewith": "4.6.1",
+        "meow": "3.7.0",
+        "mkdirp": "0.5.1",
+        "nan": "2.10.0",
+        "node-gyp": "3.7.0",
+        "npmlog": "4.1.2",
+        "request": "2.87.0",
+        "sass-graph": "2.2.4",
+        "stdout-stream": "1.4.0",
+        "true-case-path": "1.0.2"
+      },
+      "dependencies": {
+        "cross-spawn": {
+          "version": "3.0.1",
+          "resolved": "https://registry.npmjs.org/cross-spawn/-/cross-spawn-3.0.1.tgz",
+          "integrity": "sha1-ElYDfsufDF9549bvE14wdwGEuYI=",
+          "dev": true,
+          "requires": {
+            "lru-cache": "4.1.1",
+            "which": "1.3.0"
+          }
         },
-        "tunnel-agent": {
-          "version": "0.4.3",
-          "resolved": "https://registry.npmjs.org/tunnel-agent/-/tunnel-agent-0.4.3.tgz",
-          "integrity": "sha1-Y3PbdpCf5XDgjXNYM2Xtgop07us=",
+        "nan": {
+          "version": "2.10.0",
+          "resolved": "https://registry.npmjs.org/nan/-/nan-2.10.0.tgz",
+          "integrity": "sha512-bAdJv7fBLhWC+/Bls0Oza+mvTaNQtP+1RyhhhvD95pgUJz6XM5IzgmxOkItJ9tkoCiplvAnXI1tNmmUD/eScyA==",
           "dev": true
+        },
+        "request": {
+          "version": "2.87.0",
+          "resolved": "https://registry.npmjs.org/request/-/request-2.87.0.tgz",
+          "integrity": "sha512-fcogkm7Az5bsS6Sl0sibkbhcKsnyon/jV1kF3ajGmF0c8HrttdKTPRT9hieOaQHA5HEq6r8OyWOo/o781C1tNw==",
+          "dev": true,
+          "requires": {
+            "aws-sign2": "0.7.0",
+            "aws4": "1.6.0",
+            "caseless": "0.12.0",
+            "combined-stream": "1.0.6",
+            "extend": "3.0.1",
+            "forever-agent": "0.6.1",
+            "form-data": "2.3.2",
+            "har-validator": "5.0.3",
+            "http-signature": "1.2.0",
+            "is-typedarray": "1.0.0",
+            "isstream": "0.1.2",
+            "json-stringify-safe": "5.0.1",
+            "mime-types": "2.1.18",
+            "oauth-sign": "0.8.2",
+            "performance-now": "2.1.0",
+            "qs": "6.5.1",
+            "safe-buffer": "5.1.1",
+            "tough-cookie": "2.3.4",
+            "tunnel-agent": "0.6.0",
+            "uuid": "3.2.1"
+          }
         }
       }
     },
@@ -9873,7 +9925,7 @@
       "integrity": "sha512-2uUqazuKlTaSI/dC8AzicUck7+IrEaOnN/e0jd3Xtt1KcGpwx30v50mL7oPyr/h9bL3E4aZccVwpwP+5W9Vjkg==",
       "dev": true,
       "requires": {
-        "are-we-there-yet": "1.1.4",
+        "are-we-there-yet": "1.1.5",
         "console-control-strings": "1.1.0",
         "gauge": "2.7.4",
         "set-blocking": "2.0.0"
@@ -14557,9 +14609,9 @@
       "dev": true
     },
     "wide-align": {
-      "version": "1.1.2",
-      "resolved": "https://registry.npmjs.org/wide-align/-/wide-align-1.1.2.tgz",
-      "integrity": "sha512-ijDLlyQ7s6x1JgCLur53osjm/UXUYD9+0PbYKrBsYisYXzCxN+HC3mYDNy/dWdmf3AwqwU3CXwDCvsNgGK1S0w==",
+      "version": "1.1.3",
+      "resolved": "https://registry.npmjs.org/wide-align/-/wide-align-1.1.3.tgz",
+      "integrity": "sha512-QGkOQc8XL6Bt5PwnsExKBPuMKBxnGxWWW3fU55Xt4feHozMUhdUMaBCk290qpm/wG5u/RSKzwdAC4i51YigihA==",
       "dev": true,
       "requires": {
         "string-width": "1.0.2"
diff --git a/frontend/package.json b/frontend/package.json
index fc61841..cd8df1e 100755
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -60,7 +60,7 @@
     "jsdom-global": "^3.0.2",
     "mocha": "^5.2.0",
     "mocha-jsdom": "^1.1.0",
-    "node-sass": "^4.5.3",
+    "node-sass": "^4.9.2",
     "nyc": "^11.3.0",
     "react-addons-test-utils": "^15.3.1",
     "redux-test-utils": "^0.2.1",