Fixed empty preference window when shown for the first time
RESOLVED - issue OPENFLEXO-511: Proxy settings should have a
no-proxy-host field  https://bugs.openflexo.com/browse/OPENFLEXO-511
Added non-proxy host management.
IN PROGRESS - issue OPENFLEXO-512: White screen after loading of UI and
project  https://bugs.openflexo.com/browse/OPENFLEXO-512
This commit also fixes issues with Window/Frame/Module switching  on
Windows.
LOW: Added local domain detection
LOW: Removed unused field
LOW: Fixed notification
LOW: Fixed issues with module button tooltips
RESOLVED - issue OPENFLEXO-513: when sending a project to the server, a
progress bar should be displayed during the entire process (not just
upon upload)  https://bugs.openflexo.com/browse/OPENFLEXO-513
Merge remote-tracking branch 'github/1.5.1' into 1.6