sync: Add ADDON_Announce
sync: Add ADDON_Announce to all addons
[mythtv-cmyth] Handle OnSleep/OnWake announcements

Check xbmc announcement and suspend or resume services.
sync: Add WakeOnLan
sync: GetRecordingEdl
sync: Add GetRecordingEdl stubs to all addons
[mythtv-cmyth] Add GetCommbreakList and GetCutList functions to MythConnection
[mythtv-cmyth] Implement GetRecordingEdl
addongui: sync with xbmc
configure: check for GL
add version for addongui lib
bump api version to 1.6.1
sync api date bump in the copyright
Merge remote-tracking branch 'fetzerch/feature-edl' into pvrapi_1_7_0. closes #173
sync: Add iLastPlayedPosition to PVR_RECORDING. Issue #170
Merge remote-tracking branch 'fetzerch/announce' into pvrapi_1_7_0. Closes #171

Conflicts:
	addons/pvr.mythtv.cmyth/src/cppmyth/MythEventHandler.cpp
Merge remote-tracking branch 'fetzerch/wol' into pvrapi_1_7_0. Closes #172
Merge remote-tracking branch 'fernetmenta/addongui' into pvrapi_1_7_0. Closes #162
bumped api to v1.7.0
Merge branch 'pvrapi_1_7_0'