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 branch 'master' of git://git.code.sf.net/p/openpli/enigma2 into BETA