Solve a typo from the previouscommit in InfoBarGenerics
Swap zapUp and zapDown for B+/-, CH+/-, P+/- buttons

Thanks DeBeek for all help!!!
Add option to open channel selection with OK button

When enabled the B+/B-, CH+/CH-, P+/P- buttons will become the Infobar
toggle instead of the OK button.
Hopefully I covered all possible whishes for now....
Merge remote-tracking branch 'openpli/master'

Conflicts:
	lib/python/Screens/InfoBarGenerics.py