diff --git a/package-lock.json b/package-lock.json
index d24b01c..211fc01 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -3692,45 +3692,45 @@
         "express": {
             "version": "4.16.3",
             "resolved": "https://registry.npmjs.org/express/-/express-4.16.3.tgz",
-            "integrity": "sha1-avilAjUNsyRuzEvs9rWjTSL37VM=",
+            "integrity": "sha512-CDaOBMB9knI6vx9SpIxEMOJ6VBbC2U/tYNILs0qv1YOZc15K9U2EcF06v10F0JX6IYcWnKYZJwIDJspEHLvUaQ==",
             "dev": true,
             "requires": {
-                "accepts": "1.3.5",
+                "accepts": "~1.3.5",
                 "array-flatten": "1.1.1",
                 "body-parser": "1.18.2",
                 "content-disposition": "0.5.2",
-                "content-type": "1.0.4",
+                "content-type": "~1.0.4",
                 "cookie": "0.3.1",
                 "cookie-signature": "1.0.6",
                 "debug": "2.6.9",
-                "depd": "1.1.2",
-                "encodeurl": "1.0.2",
-                "escape-html": "1.0.3",
-                "etag": "1.8.1",
+                "depd": "~1.1.2",
+                "encodeurl": "~1.0.2",
+                "escape-html": "~1.0.3",
+                "etag": "~1.8.1",
                 "finalhandler": "1.1.1",
                 "fresh": "0.5.2",
                 "merge-descriptors": "1.0.1",
-                "methods": "1.1.2",
-                "on-finished": "2.3.0",
-                "parseurl": "1.3.2",
+                "methods": "~1.1.2",
+                "on-finished": "~2.3.0",
+                "parseurl": "~1.3.2",
                 "path-to-regexp": "0.1.7",
-                "proxy-addr": "2.0.3",
+                "proxy-addr": "~2.0.3",
                 "qs": "6.5.1",
-                "range-parser": "1.2.0",
+                "range-parser": "~1.2.0",
                 "safe-buffer": "5.1.1",
                 "send": "0.16.2",
                 "serve-static": "1.13.2",
                 "setprototypeof": "1.1.0",
-                "statuses": "1.4.0",
-                "type-is": "1.6.16",
+                "statuses": "~1.4.0",
+                "type-is": "~1.6.16",
                 "utils-merge": "1.0.1",
-                "vary": "1.1.2"
+                "vary": "~1.1.2"
             },
             "dependencies": {
                 "array-flatten": {
                     "version": "1.1.1",
                     "resolved": "https://registry.npmjs.org/array-flatten/-/array-flatten-1.1.1.tgz",
-                    "integrity": "sha1-ml9pkFGx5wczKPKgCJaLZOopVdI=",
+                    "integrity": "sha512-PCVAQswWemu6UdxsDFFX/+gVeYqKAod3D3UVm91jHwynguOwAvYPhx8nNlM++NqRcK6CxxpUafjmhIdKiHibqg==",
                     "dev": true
                 },
                 "debug": {
@@ -4176,7 +4176,8 @@
                 "ansi-regex": {
                     "version": "2.1.1",
                     "bundled": true,
-                    "dev": true
+                    "dev": true,
+                    "optional": true
                 },
                 "aproba": {
                     "version": "1.2.0",
@@ -4197,12 +4198,14 @@
                 "balanced-match": {
                     "version": "1.0.0",
                     "bundled": true,
-                    "dev": true
+                    "dev": true,
+                    "optional": true
                 },
                 "brace-expansion": {
                     "version": "1.1.11",
                     "bundled": true,
                     "dev": true,
+                    "optional": true,
                     "requires": {
                         "balanced-match": "1.0.0",
                         "concat-map": "0.0.1"
@@ -4217,17 +4220,20 @@
                 "code-point-at": {
                     "version": "1.1.0",
                     "bundled": true,
-                    "dev": true
+                    "dev": true,
+                    "optional": true
                 },
                 "concat-map": {
                     "version": "0.0.1",
                     "bundled": true,
-                    "dev": true
+                    "dev": true,
+                    "optional": true
                 },
                 "console-control-strings": {
                     "version": "1.1.0",
                     "bundled": true,
-                    "dev": true
+                    "dev": true,
+                    "optional": true
                 },
                 "core-util-is": {
                     "version": "1.0.2",
@@ -4344,7 +4350,8 @@
                 "inherits": {
                     "version": "2.0.3",
                     "bundled": true,
-                    "dev": true
+                    "dev": true,
+                    "optional": true
                 },
                 "ini": {
                     "version": "1.3.5",
@@ -4356,6 +4363,7 @@
                     "version": "1.0.0",
                     "bundled": true,
                     "dev": true,
+                    "optional": true,
                     "requires": {
                         "number-is-nan": "1.0.1"
                     }
@@ -4370,6 +4378,7 @@
                     "version": "3.0.4",
                     "bundled": true,
                     "dev": true,
+                    "optional": true,
                     "requires": {
                         "brace-expansion": "1.1.11"
                     }
@@ -4377,12 +4386,14 @@
                 "minimist": {
                     "version": "0.0.8",
                     "bundled": true,
-                    "dev": true
+                    "dev": true,
+                    "optional": true
                 },
                 "minipass": {
                     "version": "2.2.4",
                     "bundled": true,
                     "dev": true,
+                    "optional": true,
                     "requires": {
                         "safe-buffer": "5.1.1",
                         "yallist": "3.0.2"
@@ -4401,6 +4412,7 @@
                     "version": "0.5.1",
                     "bundled": true,
                     "dev": true,
+                    "optional": true,
                     "requires": {
                         "minimist": "0.0.8"
                     }
@@ -4481,7 +4493,8 @@
                 "number-is-nan": {
                     "version": "1.0.1",
                     "bundled": true,
-                    "dev": true
+                    "dev": true,
+                    "optional": true
                 },
                 "object-assign": {
                     "version": "4.1.1",
@@ -4493,6 +4506,7 @@
                     "version": "1.4.0",
                     "bundled": true,
                     "dev": true,
+                    "optional": true,
                     "requires": {
                         "wrappy": "1.0.2"
                     }
@@ -4578,7 +4592,8 @@
                 "safe-buffer": {
                     "version": "5.1.1",
                     "bundled": true,
-                    "dev": true
+                    "dev": true,
+                    "optional": true
                 },
                 "safer-buffer": {
                     "version": "2.1.2",
@@ -4614,6 +4629,7 @@
                     "version": "1.0.2",
                     "bundled": true,
                     "dev": true,
+                    "optional": true,
                     "requires": {
                         "code-point-at": "1.1.0",
                         "is-fullwidth-code-point": "1.0.0",
@@ -4633,6 +4649,7 @@
                     "version": "3.0.1",
                     "bundled": true,
                     "dev": true,
+                    "optional": true,
                     "requires": {
                         "ansi-regex": "2.1.1"
                     }
@@ -4676,12 +4693,14 @@
                 "wrappy": {
                     "version": "1.0.2",
                     "bundled": true,
-                    "dev": true
+                    "dev": true,
+                    "optional": true
                 },
                 "yallist": {
                     "version": "3.0.2",
                     "bundled": true,
-                    "dev": true
+                    "dev": true,
+                    "optional": true
                 }
             }
         },
@@ -10617,7 +10636,7 @@
         "qs": {
             "version": "6.3.2",
             "resolved": "https://registry.npmjs.org/qs/-/qs-6.3.2.tgz",
-            "integrity": "sha1-51vV9uJoEioqDgvaYwslUMFmUCw=",
+            "integrity": "sha512-H7Es34wXu+JjuD3QLwVgqtVU1nisFhwxYdYCYSFzWyP5/S4s8DtJ6rbVWdHVat/UPYiV36wxYmL7rPbLQJrX7g==",
             "dev": true
         },
         "query-string": {