Fixes issue with hiding toolbar of previous view controller.

Fixes #216
Improved UX a little when toggling between grid and images and using the done button.

Closes #226
Updated copyright dates and added email address to licence.
Misc fixes
Will be removed
Merge branch 'master' of https://github.com/meganz/MWPhotoBrowser

Conflicts:
	MWPhotoBrowser/Libraries/MBProgressHUD/MBProgressHUD.m
Merge commit '8c8d9c8649e09014fff65f3b95babfa90837759c'

Conflicts:
	MWPhotoBrowser/Libraries/MBProgressHUD/MBProgressHUD.m
Updated SDWebImage and DACircular progress.
Merge branch 'master' into develop

* master:
  Will be removed
  Misc fixes
  Updated copyright dates and added email address to licence.
  Improved UX a little when toggling between grid and images and using the done button.
  Fixes issue with hiding toolbar of previous view controller.
Merge pull request #2 from antokne/develop

Updated SDWebImage and DACircular progress.