Remove .js format for MergeRequest controller

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>
Remove GET .js format for Milestone controller

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>
remove GET window.updatePage method that do dataType script

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>
Merge branch 'master' of github.com:gitlabhq/gitlabhq