Use OK button to get choicebox for selecting in config choiceslist

Usually when you have long config choices list you have to press a lot
of times left/right to select the wished collection. E.g. in satellite
and transponders lists might be long. Now with OK you get a choicebox and
are able to see all posibilities and quicker select the selection you
want.
SatConfig/Setup: Allow OK button to quickly select satellites/transponders

The Green button is to save or start scans. This allows to use the
choicebox as mentioned in the previous commit within these screens
Improve config selection choicebox feature

- change the choicebox from OK button to the FILE/VIDEO button as more
  config menus could be profit from it without making a lot of changes
  over the UI
- solve some GDOD regarding number of variables for handleKey
Solve more possible GSOD for config selection choicebox feature
Bring back OK to Satconfig/Setup

As the config selection choicebox feature is now on the file/video button
Solve some translations issues for config selection choicebox
Cosmetic changes to some Dutch translations
Merge branch 'master' of git://git.code.sf.net/p/openpli/enigma2