Merge pull request #3539 from GrahamCampbell/composer

Minor Composer Tweak
Fix caller bug.
Fix job retry bug with attempts.
Merge branch '4.1'
Work on showing class in failed job listing.
Merge branch '4.1'
Fix parsing bug.
Merge branch '4.1'
Added getPrefix() for Routing\Route
Added getPrefix() test for Routing\Route
Fix type hint of UrlGenerator
Add comment for clarification.
Merge branch '4.1' of https://github.com/jyggen/framework into jyggen-4.1
Cleaning up some code.
Merge branch '4.1' of github.com:laravel/framework into 4.1
Merge branch '4.1'
Merge pull request #3557 from KennedyTedesco/4.1

Added getPrefix() for Routing\Route
Arranging methods.
Fixed and updated some dependencies
Fix Illegal string offset 'function' on morphToMany