ChannelSelection: Solve GSOD when moving in radiochannellist

If you disable "Hide channel list in radio mode" (User interface settings) and try to move a channel in the channel list, you get a green screen (when you activate the move mode).
http://forums.openpli.org/topic/35467-bug-in-radiomode-when-move-channels/
Thanks betacentauri for reporting.
Configurable default for resume playback message box.

Feature as suggested by greatred

http://forums.openpli.org/topic/35381-functionality-question-request/
Add prefered transponders for DVB-C and (sat)signalfinder for DVB-C/T

As suggested by Huevos
http://forums.openpli.org/topic/35468-satfinder-dvb-t-dvb-c/
Hotkey: Add long and short functionality for search button
Satfinder: Solve GSOD when coming from DVB-T/C and find changed to DVB-S
Satfind: Simplify updatePreDefTransponders

Also solves an isue with the selected transponder
Satfinder: Hopefully final solution for predeftransponder list

As still from switching from different modes (S2/T/C) we still can get a
GSOD because changing the predef/manual config transponder was on the
retune notification list. It still does rebuild the config and because
after rebuilding the config also a retune is performed it can be removed
from the retune list avoiding GSOD when a type of transponder list is not
build yet.

Sorry for my previous two commits as they where not really required.
Add option to change timer name for repeated timers

As suggested by Dima73, and thanks for IMS and Betacentauri for all
commants.
http://forums.openpli.org/topic/35446-recordtimer-and-repeated-timer/
It also renames the resulting filename and I made it default ON.
FrontendInfo: Cosmetic change
RecordTimer: Rename repeat also default True for existing timers
Only rename resulting filename of repeated recording

And do not rename the timer itself as it might confuse user (as suggested
by Dima73).
nimmanager: cleanup some dead debug code.
nimmanager: always read all xml files (if present)

At the point where enigma decides to either do or don't
read an xml file (satellites.xml/terrestrial.xml/cables.xml),
no information is yet known about multi-type tuners, so some
xml are skipped while they shouldn't.

For the moment workaround this by always reading all xml file
(if present), as this probably is a chicken-egg-problem.
nimmanager: remove reading atsc transponder list.

It was inactivated anyway.
servicedvb: simplify audio cache selection in selectAudioStream

Signed-off-by: littlesat <littlesat99@yahoo.com>
Introduce getGStreamerVersionString function and use it in About screen

Signed-off-by: littlesat <littlesat99@yahoo.com>
remote controls: add correct identifier for et7500/et7000 and et8500.

Signed-off-by: Erik Slagter <erik@openpli.org>
nimmanager: only read xml files we have a tuner for.

This works around the problem described in c8125976...

Signed-off-by: Erik Slagter <erik@openpli.org>
about.py: make two texts translatable

Signed-off-by: Erik Slagter <erik@openpli.org>
Make min translatable in ClockToText and RemainingToText converter

Signed-off-by: littlesat <littlesat99@yahoo.com>