Multiprocessing implementation
Fix auto calibration range bug introduced with continuous scanning
Display popup if redraw takes too long
Remove unneeded style from save warning dialog
Merge branch 'master' into Multiprocessing

Conflicts:
	src/threads.py
Rename variable for clarity
Thread doesn't have to be alive
Improvements to live update
Use proper multiprocessing for psd
Added missing license
Refactoring
Warn if wrong file run
Fix label position
Improved shutdown
Refactoring and remove refresh popup for now
Clean old code
Refactoring
Minor cleanup
Don't join on main thread
Return of main thread join()... for now