Fixed #17 the iOS 'image squash' bug.

#changelog
Moved the line that adds the 'dz-started' class where it belongs.
Corrected the default 'File too big' message.

#364
Removed the selectedfiles event.

It’s a very confusing unnecessary event.
Added the possibility to handle pasted files, but disabled it for now.

All browsers I tested so far don't handle it properly.

#331
Adapted the test for the new MiB error message.
Added test for the addRemoveLinks option.
All elements with the data-dz-remove attribute are remove links now.

#changelog closes #391
The creation of thumbnails is now queued which strongly improves performance.

#changelog closes #348
Added the queuecomplete event that gets triggered when all files finished uploading.

#changelog closes #317
Changed the defer calls to a timeout of 0 instead of 1
Bumped version and added download files.
Bumped version to 4.0.0-dev
Fixed the queuecomplete event so it only fires once.
Fixed the bug that all subsequent file uploads don't generate a thumbnail.

#changelog fixes #422
Bumped version and added download files.
Bumped version to 4.0.0-dev again.