partitially restore pip-functionality
pip is switched on/off by a single toggle-button; the pip-rect is (currently) hardcoded in source; could maybe come from commandline but either way would be fixed and not user-changeable
disable pip-button focus
fix shortcuts for pri & sec images
1-9 for pri
ctrl-1 - ctrl-9 for sec
p for pip
a for cut
use togglebutton-state instead of bool-variable
aloow setting pip area from command line
disalow pip with same content
better defaults: place pip in bottom right corner
remove grey border which should highlight the area in which is save to place the pip in, when the result is viewed on a classic crt tv.
Merge pull request #1 from MaZderMind/reenable-fixed-pip

Reenable fixed-placed pip