Skin installable under Frodo

Status update:

I fixed the most pressing issues with the skin under Frodo. 
This makes the skin installable on a clean Frodo RC3 system.

Todo: 

- fix a lot of invalid animation/skinning includes that seem to originate from copying parts from other skins. (to name a few: Animation_CloseZoom, InvisibleLabel, Animation_OpenCloseSlideWidget, skin_allcolors, SkinVersion, Window_OpenClose_Animation ) Lots of errors when running in debug mode, skin might not show as intended. Does not seem to break functionality too bad.
- Randomitems script is not available for Frodo, and has been replaced by Skinwidgets which uses totally different calls. 
Need to fix all calls to the new skinwidgets addon (many) to get the random items working again on homescreen. (at which point i will merge the Frodo_randomitems branch back into Frodo)