Duplicate any newline after an echo statement to counteract PHP's closing tag behaviour
Add keyBy to changes
Fixed use statements
Added BelongsTo::dissociate()
Merge pull request #4891 from GrahamCampbell/4.2-use

[4.2] Fixed Use Statements
Merge pull request #4887 from JosephSilber/add-keyby-to-changes

Add keyBy to changes
Merge branch 'newline-fix' of https://github.com/tjbp/framework into tjbp-newline-fix
Remove comment.
Merge branch '4.2' of github.com:laravel/framework into 4.2
Merge pull request #4896 from GrahamCampbell/4.2-dissociate

Added BelongsTo::dissociate()
Add set() function to Collection