Rename the merge method to collapse.

Signed-off-by: Jason Lewis <jason.lewis1991@gmail.com>
Add merge method to merge in another array or collection.

Signed-off-by: Jason Lewis <jason.lewis1991@gmail.com>
Updated readme.

Signed-off-by: Jason Lewis <jason.lewis1991@gmail.com>
Merge branch 'master' of git://github.com/laravel/framework into fix/proper-merge-collections

Conflicts:
	readme.md
Merge pull request #1174 from jasonlewis/fix/proper-merge-collections

Allow merge to actually merge in another array or collection.