Only show fixed columns when the service is playable

As it is only required when EPG is possible
Update po files

There seems to be some sort of promise to not touch
translatable strings for a while (famous last words)
so now is a good time to update the po files again.
Add option for record indication in service list

Todo: alternative services and possibly different ways to indicate if a service is currently recorded
Also check in alternatives (groups) when they are recorded in servicelist

And make the check a separate function that possibly can also be called from python
Use virtual keyboard when inserting new marker or new bouquet

Instead of InputBox. This is more user friendly.
Add additonal font in red mode as recording indicator in channellist
Use a lass agressive red color to mark recorded services
Fix for parental control issue by Dima73
Only check for recorded services when the indication feature is enabled

And in addition slightly simplify some code around painting the recording icon
de.po: Update German Translations

Signed-off-by: Littlesat <littlesat99@yahoo.com>
scan both DVB-T/T2 when 'system' is not specified in terrestrial.xml
SleepTimerEdit: indicate if sleeptimer is active or not

And give an indication about the remaining time
In addition fix a bug when the sleeptimer config was changed

Thanks Dima73 for the suggestions
eDVBScan: add sanitycheck on m_ch_current

dc4498c8361646bff74b542a88e046f7b79fbc2d could cause a segfault
SleepTimerEdit: Only disactivate sleeptimer when it was running before
Merge branch 'master' of git://git.code.sf.net/p/openpli/enigma2