wikimedia/Commons-iOS — pull request #12 by felixmo (2013-02-03 00:56:17+00:00)
Title: Failure blocks + feedback for failures + UI improvement

I implemented failure blocks for operations in **MWApi** and **CommonsApp** so failures can be handled. I also added some alerts for failures such as incorrect credentials, upload failures, and refresh failures.

Also I changed the behaviour of the 'Upload' button so that it is only enabled when there are files queued for upload.