Fixes #186 Error when there's multiple sequenced addons
Fix a bug where the imageUpload directive without a drop zone wasn't able to upload a file
Fixes #188 Support for expand/collapse sequence addon items
Merge branch 'fix-no-dropzone' of git://github.com/Nesk/mayocat-shop into Nesk-fix-no-dropzone
Merge branch 'Nesk-fix-no-dropzone'