[buildsystem] new app icons for all platforms
[osx] create icon from the iconset
[atv2] use AppIcon.png from new path
[upnp] make use of new icons and add additional sizes
[linux] make use of new icons
[droid] fetch launcher icons from media dir
[ios] - announce new icons in the info.plist
[atv2/packaging] - ensure to overwrite our icon in the cache for make it appear
[cydia] - remote iconpack script - iconpack is not needed anymore - http://mirrors.xbmc.org/apt/pre-release/ios/CydiaIcon.png is used for it - should be replaced with media/iOS/rounded/AppIcon57x57.png
[ios/atv2] - removed unused XBMC.png and moved the ATV2 version of XBMC.png to media/ATV2
[ios/atv2] - sync project for new icons - add the media folder to xcode
[win32] make use of new icons and media