Fluorescent 0.4 Build 0009

New release of Fluorescent.

Changelog:

• use Graph API to download Facebook profile pictures. Loading takes more time but the quality is great.
• rewrite roster item model so I could utilize QSortFilterProxyModel for filtering out offline contacts and for search
• update donation URL
• optimized update check code
• Remove chats dialog.
• Add icon for sub requests.
• Don't show avatar mask with MUC.
• Optimize code, remove some useless functions.
• Hackplement entity time feature
• Add incoming file transfer requests, sort of, to events area. User can accept and reject transfers, but actually everything else is useless.
• Fixed removing events.
• Option to change cache directory.
• Fix Events page in landscape
• Make account buttons non-flat.
• Disable accept button in accounts add page if data is incomplete.
• Implement roster sorting. In the future there will be a way to mark contacts as favorite so they will be always visible and always on top of the list.
• Fix animations on Events page.