rename most occurrences of M2 to math program
rename most occurrences of M2 to math program

antonleykin/InteractiveShell,fhinkel/InteractiveShell,YueRen/tryM2,YueRen/tryM2,antonleykin/InteractiveShell,fhinkel/InteractiveShell,YueRen/tryM2,fhinkel/InteractiveShell,fhinkel/InteractiveShell,antonleykin/InteractiveShell