Bump babel-loader from 7.1.2 to 7.1.3 in /www (#880)

Bumps [babel-loader](https://github.com/babel/babel-loader) from 7.1.2 to 7.1.3.
- [Release notes](https://github.com/babel/babel-loader/releases?after=v8.0.0-beta.1)
- [Changelog](https://github.com/babel/babel-loader/blob/master/CHANGELOG.md)
- [Commits](babel/babel-loader@v7.1.2...v7.1.3)

www/package.json

@@ -26,7 +26,7 @@
     "babel-cli": "^6.26.0",
     "babel-core": "^6.26.0",
     "babel-eslint": "^8.2.2",
-    "babel-loader": "^7.1.2",
+    "babel-loader": "^7.1.3",
     "babel-plugin-dynamic-import-node": "^1.2.0",
     "babel-plugin-lodash": "^3.3.2",
     "babel-plugin-syntax-dynamic-import": "^6.18.0",

www/yarn.lock

@@ -744,9 +744,9 @@ babel-jest@^22.4.1:
     babel-plugin-istanbul "^4.1.5"
     babel-preset-jest "^22.4.1"
 
-babel-loader@^7.1.2:
-  version "7.1.2"
-  resolved "https://registry.yarnpkg.com/babel-loader/-/babel-loader-7.1.2.tgz#f6cbe122710f1aa2af4d881c6d5b54358ca24126"
+babel-loader@^7.1.3:
+  version "7.1.3"
+  resolved "https://registry.yarnpkg.com/babel-loader/-/babel-loader-7.1.3.tgz#ff5b440da716e9153abb946251a9ab7670037b16"
   dependencies:
     find-cache-dir "^1.0.0"
     loader-utils "^1.0.2"