chore(package): update dependencies

https://greenkeeper.io/

package.json

@@ -77,13 +77,13 @@
   },
   "devDependencies": {
     "auto-changelog": "0.3.1",
-    "babel-core": "6.17.0",
+    "babel-core": "6.18.0",
     "babel-loader": "6.2.5",
-    "babel-plugin-external-helpers": "6.8.0",
+    "babel-plugin-external-helpers": "6.18.0",
     "babel-plugin-istanbul": "2.0.3",
-    "babel-plugin-transform-es2015-modules-umd": "6.12.0",
+    "babel-plugin-transform-es2015-modules-umd": "6.18.0",
     "babel-polyfill": "6.16.0",
-    "babel-preset-es2015": "6.16.0",
+    "babel-preset-es2015": "6.18.0",
     "babel-preset-stage-0": "6.16.0",
     "chai": "3.5.0",
     "coveralls": "2.11.14",
@@ -100,22 +100,22 @@
     "karma-mocha": "1.2.0",
     "karma-mocha-reporter": "2.2.0",
     "karma-phantomjs-launcher": "1.0.2",
-    "karma-sauce-launcher": "1.0.0",
+    "karma-sauce-launcher": "1.1.0",
     "karma-sourcemap-loader": "0.3.7",
     "karma-webpack": "1.8.0",
     "mkdirp": "0.5.1",
     "mocha": "3.1.2",
     "np": "2.9.0",
     "npm-run-all": "3.1.1",
     "nsp": "2.6.2",
-    "nyc": "8.3.1",
+    "nyc": "8.3.2",
     "phantomjs-prebuilt": "2.1.13",
     "rimraf": "2.5.4",
     "rollup": "0.36.3",
     "rollup-plugin-babel": "2.6.1",
     "rollup-plugin-cleanup": "0.1.4",
     "rollup-plugin-conditional": "0.1.4",
-    "rollup-plugin-filesize": "1.0.0",
+    "rollup-plugin-filesize": "1.0.1",
     "rollup-watch": "2.5.0",
     "semver": "5.3.0",
     "sinon": "1.17.6",