Add change zap wakeup type for blue button

As suggested by Dima73
PositionerSetup: Solve allocating unused memory index when use USALS

Thanks Dima73
http://openpli.org/forums/topic/33325-positioner-setup-feature-request/
enigma2.bb: fix indentation in populate_packages_prepend

bitbake metadata is using 4 spaces for indentation in python
functions, forcing us to follow suit
enigma2.bb: inherit pythonnative

which fixes native python include path resolving
frontend: consider DVB-T2 plp id in transponder comparison
frontend: make plp id available in transponder data

and support DVB API >= 5.9, which uses the generic
DTV_STREAM_ID property instead of DTV_DVBT2_PLP_ID
Merge remote-tracking branch 'pli/master'