New OE2.2 Update -09.08.2016

Update: ennigma2 4.3.0r11
- fix DVD forced subtitles handling
- some DVB-T2 fixes
- add getters/setters for UserAgent and TransportHeaders (both are temporary values, not being saved in the actual servicereference)
- close audio menu when pressing audio key
- switch to new default skin for dm820 / 7080 / 520 (only after factory reset)
- fix small memleak
- show the default storage device in the About screen instead of simply showing the "first in list"
- move a whole lot of screens back to skin_default.xml to fix issues with 3rd party skins
- unify most of the screens to few selected "standard sizes" (and quite some additinal skin optimizations)
- update/improve a lot of LCD/OLED Screens
- some minor fixes and cleanups
- just warn on unsupported skin attributes .. no fatal exception
- fixed fallback to default skin on SkinError exception on e2 startup
- some skin changes (because of ew default HD skin)