vdr-addon: cache should be persistent, move to addon datadir
boost: update to boost-1_53_0

Signed-off-by: Stephan Raue <stephan@openelec.tv>
Merge branch 'master' of github.com:OpenELEC/OpenELEC.tv
vdr-addon: sleep/resume: do not start vdr on resume, if not started before suspend
tvheadend: sleep/resume: do not load modules on resume if tvheadend not started before suspend
vdr-addon: suspend/resume: send notifications
tvheadend: suspend/resume: send notifications
vdr-plugin-xmltv2vdr: update to vdr-plugin-xmltv2vdr-90c023f6
tvheadend: update to tvheadend-3.3.521
xbmc: update to xbmc-12.1.5

Signed-off-by: Stephan Raue <stephan@openelec.tv>
Merge branch 'master' of github.com:OpenELEC/OpenELEC.tv
xbmc-theme-Confluence: update to xbmc-theme-Confluence-12.1.5

Signed-off-by: Stephan Raue <stephan@openelec.tv>