ScanSetup: More fixes for satfind

Hopefully this does cover everything. Thanks for everyone who helped in
this thread: http://openpli.org/forums/topic/30496-satfinder-bsod/page-2
pvrparse: Don't write half AP files.

Access point file is written in total at the end of the recording.
Remove it if writing fails. Otherwise, it will make the recording
appear much shorter than it actually is.
Also close PiP when press exit in Movieplayer.

To makes the PiP and exit button behavior more consistent.
See discussion here: http://openpli.org/forums/topic/30616-strange-behavior-pip/
Make hide PiP on exit configurable via Userinterface settings
Make exit on Movieplayer configurable
Add more options to disable PiP with exit button
Satfinder: Fix FECs for DVB-S2

All credits to Huevos
Channelselection: Add option to rename selected entry
ChannelSelection: Keep focus on renamed service.

And not reselect the current played service
ChannelSelection: use VirtualKeyboard to modify entries

And...
-do not focus to current selected service when bouquet entry is changed
-support to rename markers is not required as markers could not be
selected (a different solution should be found for them).
[satfinder] select correct fec for S2 scans
Merge remote-tracking branch 'pli/master'

Conflicts:
	lib/python/Screens/ChannelSelection.py
	lib/python/Screens/InfoBarGenerics.py
[ScanSetup] add predefined transponder search
[InfoBarGenerics] fix typo. (thanks Koivo).
RecordTimer.py: Reset first_try_prepare on repeating timers

See http://openpli.org/forums/topic/30676-problem-with-a-repeated-timers/

Initially 'first_try_prepare' set to True. So, if current channel isn't the
required one, then RecordTimerEntry.activate() switches to the required
channel. But this method also sets the 'first_try_prepare' variable to
False. So on subsequent recording events RecordTimerEntry.activate() can't
switch to the required channel.
ScanSetup: Add predefined transponders

Thanks Huevos
ChannelSelection: Add option to remove and rename markers

As selecting markers is not available via the normal bouquets lists you
should enable the bouquet edit mode first. Then the new options remove and
rename are available
ChannelSelection: remove a not required mutableList.flushChanges()
ScanSetup: cosmetics by removing space before double quote
[EpgSelection] tweak Record Choice dialog.