enigma2-plugin-skins-pli-scale-hd: enable AUTOREV

and remove variables with default values
vusolo2: Add vuplus-initrd to boot image

Patch from VU+ via e-mail
vuplus-dvb-modules-vusolo2: Update driver 20130218

- Fix Scart RGB output
- Support R/C with german keyboard
mention 'openpli-enigma2-feed' in the howto
Accomodate for updated license of PLi-Scale-HD skin.

Signed-off-by: pieterg <pieterg@users.sourceforge.net>
Fix dvbsnoop source URI.

Signed-off-by: Littlesat <littlesat99@yahoo.com>
Update checksums for pyload.

Signed-off-by: Littlesat <littlesat99@yahoo.com>
libpng: switch SRC_URI to SOURCEFORGE_MIRROR
Merge remote-tracking branch 'pli/master'