enigma2 update to 20120828 (Dreambox)

enigma2 update to 20120828

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- List Source fixed multiple selectionChanged callbacks
- Hbbtv: fixed "setup disappearing when disabled" bug
- Hbbtv: hide video overlay when execEnd is called on the browser
- removed wrong assertions (fixes 'FATAL: demux.cpp:684 ASSERTION ret == pending FAILED!' message)
- eWindowStyle: implement getCo eWindowStyle: implement getColor method so that py gui can access named skinned windowstyle colors (e.g.ListboxMarkedAndSelectedBackground)lor method so that py gui can ac
- PluginBrowser: remember current selected list index when running a plugin and reappliy this index when exiting the plugin
- skin: implement class TemplatedColors for allowing py screens to query eWindowStyleSkinned named colors (e.g. "ListboxMarkedAndSelectedForeground")
- Default-HD/skin: add missing ip address to about screen
- Browser: improve fullscreen skin on screens with overscan
- temporary reverted "search servicelist by namespace, tsid, onid to speedup filtering by channelid a lot)"
- add support for multiple pre start scripts "/usr/bin/enigma2-pre-start*.sh"
- NimManager: increased default voltage poweron delay
- some softwaremanager changes for squashfs compressed packages