OE2.5 Dream Elite 6.0 For DM 820 HD-12.10.2017

Changelog of 12.10.2017
 - update to enigma2 4.3.1r18
 - some changes for dm920 support
 - more tuner score calculation fixes for multi channel / multi input tuners (e.g. BCM45208)
 - tuner score calculation fix for motorized dishes
 - add support to display used tuner inputs and currently active tuner input in skins and use it for the default skin infobar
 - fixed osd screenshots showing backbuffer content
 - remove old display skin selektor