Adjust code signing defaults for beta builds.
Localisation updates from http://translatewiki.net.
Smoothed upload progress bar so not so jumpy
Merge pull request #72 from montehurd/uploadProgressBar

Smoothed upload progress bar so not so jumpy
Gray out and disabled login button if incomplete credentials
Extracted trimming to common method

Also added accessors for getting trimmed versions of user name and password.
Merge pull request #73 from montehurd/disableLoginIfNoCredentials

Gray out and disabled login button if incomplete credentials