Add improved ETA computation (untested yet)
Drop self.f (for memory optimization & code cleanup)
Merge branch 'experimental' of github.com:kliment/Printrun into experimental

Conflicts:
	pronterface.py
Merge branch 'experimental' of github.com:kliment/Printrun into experimental
Merge branch 'experimental' of github.com:kliment/Printrun into experimental
Fix typo
Add dummy __init__.py to Printrun to be able to use it as a submodule
Remove arrows support from GcodeModel, as we did not use it anyway
Fix typo in printcore.py
Minor changes to gcoder to correctly process gcode added over time
Remove toggleview() as Mini mode is gone anyway
Merge branch 'experimental' of github.com:kliment/Printrun into experimental
Actually, we don't need this __init__.py
Add pronserve.py to setup.py (#372)
Fix import error (#372)
Improve ETA prediction
Start using logging module instead of prints
Fix stlview with pyglet 1.2 (fixes #374)
Improve hostname detection and use hostname:port format
Make ETA estimation more stable