frontend and frontendparms: sync fec given eDVBFrontendParametersCable

Signed-off-by: pieterg <pieterg@users.sourceforge.net>
ScanSetup.py and Transponder.py: Refresh fec for DVB-C

Signed-off-by: pieterg <pieterg@users.sourceforge.net>
Small translation fixes
Merge branch 'master' of git://git.code.sf.net/p/openpli/enigma2 into BETA