Tweak JSHint and JSCS checks.

BS3 commits: 5ef9383f5388ba7a701c4377b43ebdbedb0bf748
Minor style tweaks.

BS3 commits: e2cabe4971927e3dbbbda4c81ae8f74abdee2d15
Comply to the new style.

BS3 commits: 7b0acf14d8a7c7c6089035a848cba540ed963f36
Run `grunt`.

BS3 commits: 03a8949d7c7937dd56da0802acbbded1ee27152f