[PyBinding] Add pathbar support to PyBinding.

License: MIT/X11
Merge branch 'master' of github.com:Unity-Technologies/monodevelop
Disable "experimental" on-the-fly code formatting.
Merge branch 'master' of github.com:Unity-Technologies/monodevelop
Expand scope of nullcheck. Case 485302.
Merge branch 'master' of github.com:Unity-Technologies/monodevelop
Disable window splitting, too broken to be usable.
Remove folds on the gui thread.
Case 497332.
Add linux build script.
Merge branch 'master' of github.com:Unity-Technologies/monodevelop
Build relative paths case-insensitively on windows/osx.
Merge pull request #23 from Unity-Technologies/unity-staging

Random fixes from staging