Hangups

- Fix authentication error:
Google broke the authentication method Hangups uses. This update should fix the problem for now.
Please refer to:
- https://github.com/tim-sueberkrueb/ubuntu-hangups/issues/68
- https://github.com/tdryer/hangups/issues/260

- Update to support OTA-13 (see 66)

- Update to support OTA-12 (new PageHeader)

Minor bug fix release

Changes:
- Updated translations
- Fixed transparent page headers
- Fixed authentication bug
- Minor improvements

- New icon by Sam Hewitt
- Convergence support
- Added stickers support
- New account settings
- Improved chat experience
- Upgrade to Ubuntu.Components 1.3
- Better loading screen
- Added scroll-to-bottom indicator
- Fixed image sending bug
- Upgraded internal libraries
- Several minor bug fixes and improvements

New features:
- Updated translations
- Updated design and send icon
- Added support for renaming conversations
- Added support for animated GIF images
- Added online status of conversations
- Several small improvements

Bug fixes:
- 10 send button doesn't work when keyboard is open