servicemp3: Implement eStaticServiceMP3Info::getEvent

Without eStaticServiceMP3Info::getEvent we are not getting epg events in channel list.
More info http://openpli.org/forums/topic/31451-epg-with-gstreamer-servicemp3

Signed-off-by: pieterg <pieterg@users.sourceforge.net>
ChannelSelection: Corrently reenter bouquet during pipzap

When performing the renumbering
Merge branch 'master' of git://git.code.sf.net/p/openpli/enigma2