indent-region fails sometimes at last line, lp:1180653

could not reproduce the bug reported though, hope it's done with current trunk
menu - "Check" brought up at first panel

related menu cleanups
`py-pylint-run' fixed

Menu: mention `pip' beside `easy'_install
`py-shell' in a shell buffer doesnt work, lp:1182696

fixed
from within py-shell call another instance, lp:11696875

fixed