xbmcpvr: change to master branch

Signed-off-by: dh-harald <github@criminal.hu>
xbmcpvr: update libhts patch

Signed-off-by: dh-harald <github@criminal.hu>
xbmc: add libxslt

Signed-off-by: dh-harald <github@criminal.hu>
xbmc: change to Gotham branch

Signed-off-by: dh-harald <github@criminal.hu>
confluence_powerbutton.patch: update for gotham

Signed-off-by: dh-harald <github@criminal.hu>