Bump react from 16.2.0 to 16.3.0 (#72)

Bumps [react](https://github.com/facebook/react) from 16.2.0 to 16.3.0.
- [Release notes](https://github.com/facebook/react/releases)
- [Changelog](https://github.com/facebook/react/blob/master/CHANGELOG.md)
- [Commits](facebook/react@v16.2.0...v16.3.0)

Signed-off-by: dependabot[bot] <support@dependabot.com>

package.json

@@ -19,7 +19,7 @@
     "coffeescript": "2.2.4",
     "moment": "^2.21.0",
     "prop-types": "^15.6.1",
-    "react": "^16.2.0",
+    "react": "^16.3.0",
     "react-dom": "^16.2.0",
     "react-moment": "^0.7.0",
     "react-router-dom": "^4.2.2",

yarn.lock

@@ -5423,9 +5423,9 @@ react-waypoint@^8.0.1:
     consolidated-events "^1.1.0"
     prop-types "^15.0.0"
 
-react@^16.2.0:
-  version "16.2.0"
-  resolved "https://registry.yarnpkg.com/react/-/react-16.2.0.tgz#a31bd2dab89bff65d42134fa187f24d054c273ba"
+react@^16.3.0:
+  version "16.3.0"
+  resolved "https://registry.yarnpkg.com/react/-/react-16.3.0.tgz#fc5a01c68f91e9b38e92cf83f7b795ebdca8ddff"
   dependencies:
     fbjs "^0.8.16"
     loose-envify "^1.1.0"