Solve some possible GSOD with some plugins

Thanks Dima73
http://openpli.org/forums/topic/32640-pip/
Add fancontrol at customized settings menu

Depending on specific procs are available
Ensure no fan is initialized when there is no fan proc
Avoid GSOD for boxes that have a fan_pwm proc and no plain fan proc

E.g. for DMM800SE.
Thanks IMS
Use SystemInfo instead of rechecking if "fan" procs do exist
Only show fan speedcontrol when we have a "plain" fan proc
ChannelSelection: disable timeout in numericalTextInput

Now you can select much easier the next letter without falling back to the
first character behind a number key. This especially an improvement for
slow performance enigma2 settop boxes.
frontend: SNR approximation in dB for new Xtrend DVB-S tuners
InputDeviceSetup: Add new Xtrend remotes
Change DVB subtitles default to center

So use the same default as we have for teletext subtitles
add hdmi input support

introducing service id 0x2000 (8192)

This allows HDMI input to be selected with a bouquet entry:

 #SERVICE 8192:0:1:0:0:0:0:0:0:0:

(or started as PiP)
Hopefully a better SNR approximation in dB for new Xtrend DVB-S tuners
ServiceInfo: Add some helpfull converter types

Add IsHD and IsSD so in the skin you do not need to check ranges anymore
and add IsSDAndWidescreen and IsSDAndNotWidescreen
Make some changes to the LCD display VUDUO2/ET10K

-add a rec icon and correctly display rec in standby
-event name instead of remaining event time
Add preferred tuner for recordings feature

Thanks Dima73
http://openpli.org/forums/topic/32635-preferred-tuner-for-recording/page-2
Solve issue with previous skin_display

Sorry I moved the rec icon into an incorrect folder
Show GMEPG not by default in the extentions menu

As it is also quickly reachable via long info/epg button and also possible
to move it to short info/epg button by default.
Put back DVB subtitles patch

As it was by accident removed
Sorry I forgot to add skin_default in an Makefile.am
Add LCDIcons Makefile in configure.ac