Changelog:
- Added Tribler request dispatcher with multiple priority request pools
- Fixed issues with Qt Http threads
- Fixed SSL support with treq on Windows
- Added proper resource cleanup on restarting Tribler
- Fixed error message on request manager
- Refactored Process Checker
- Checked for the existence of an index in lazy loading the list widget
- Added check for Tribler settings if it is available before starting download
- Fixed issue with log directory selection
- Fixed issues with None json results in downloads
- Torrents with invalid info hash are ignored
- Fixed few unicode issues