Gruntfile Cleanup & Documentation

refs #2622, refs #1340

- added documentation to grunt tasks which will replace the wiki page, including reordering the tasks to make the documentation easier to read
- removed grunt changelog which is no longer used
- merged jshint:shared into jshint:server
- cleanup of quote marks, formatting, line lengths etc
- also fixed the incorrect version number for grunt-docker
- added route tests to coverage

core/test/blanket_coverage.js

@@ -6,3 +6,4 @@ var blanket = require("blanket")({
 
 requireDir("./unit");
 requireDir("./integration");
+requireDir("./functional/routes");

package.json

@@ -71,7 +71,7 @@
         "grunt-contrib-jshint": "~0.8.0",
         "grunt-contrib-uglify": "~0.2.5",
         "grunt-contrib-watch": "~0.5.3",
-        "grunt-docker": "~0.8.8",
+        "grunt-docker": "~0.0.8",
         "grunt-express-server": "~0.4.11",
         "grunt-groc": "~0.4.5",
         "grunt-mocha-cli": "~1.4.0",