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
NimManager: Solve another possible issue with the 64 LNBs feature

Thanks Dima73
Fix possible GSOD with VirtualKeyBoard when using SMS style

There could be a timer still ongoing that causes the GSOD
Thanks DeBeek for reporting and Dream1975 for confirming
http://openpli.org/forums/topic/33408-crash-bij-te-snel-hernoemen-bestanden/
NimManager/Satconfig: add latest suggestions from Dima73

http://openpli.org/forums/topic/33333-why-are-there-only-32-lnb-numbers/page-3
NimManager: input 1-16 belongs diseqc 1.1 and not to diseqc 1.0

See discussion here: http://openpli.org/forums/topic/33333-why-are-there-only-32-lnb-numbers/page-4
NimManager: do not make AA AB BA BB translatable and add ABCD to them
NimManager: solve issue with previous commit
NimManager: Make diseqc input description translatable again.

Sorry I did not realise it might be helpfull for e.g. the Russian and
Greek languages etc...
Add "Predefined transponder" option for DVB-T for manual scan

As suggested by Dima73
http://openpli.org/forums/topic/33460-manual-scan-add-option-predefined-transponder-for-dvb-t/
Merge remote-tracking branch 'OpenPLI/master'

Conflicts:
	lib/dvb/frontend.cpp