New OE2.2 Update -12.07.2016

Update: ennigma2 4.3.0r10
- added dm520 support
- replaced old SD skin with new default HD skin
- show up to 5 tuners in About Screen
- getNextRecordingTime/getNextZapTime must ignore already running timers
  (used for automatic wakeup from deepstandby)
- fixed SNRdb calculation for CXD1981 in DVB-T mode
- fixed call of external cable scan helper tool linux-dreambox_3.4: fixed kernel cmdline again (memory config was broken after dm520 merge)