Bumped swiftmailer version
Fixed swiftmailer dependency
Final cs fixes
Merge pull request #3940 from GrahamCampbell/4.1-fixes

Final CS Fixes
Merge pull request #3939 from GrahamCampbell/4.1-swiftmailer

[4.1] Fixed Swiftmailer Dependency
Merge pull request #3938 from GrahamCampbell/4.2-swiftmailer

[4.2] Bumped Swiftmailer Version
Working on dependencies.
Change whoops dep.