Align the rating for user script lists

This is my first mustache edit so please verify that I did this right before committing and production.
Tabs to spaces with some code realignment and Jerones ["shorter" recommendation](/OpenUserJs/OpenUserJS.org/pull/99#issuecomment-43203723)
Merge branch 'master' into UserScriptListRatingAlignment
Closes #101.
Accept header is lowercase in express. Closes #105.
Merge branch 'master' into UserScriptListRatingAlignment
Merge pull request #99 from Martii/UserScriptListRatingAlignment

Align the rating for user script lists