[tvheadend] added working seek support.
[tvheadend] ensure timeshiftStatus does not spam logs
[tvheadend] update subscriptionSeek call to use abs PTS
[tvheadend] correct previous mistaken fix to webroot processing
[tvheadend] update addon version info
[tvheadend] fix return PTS when skipping
addongui: sync with xbmc
configure: check for GL
add version for addongui lib
bump api version to 1.6.1
updated README for windows
Merge pull request #175 from adamsutton/pvr-hts-keep_opdenkamp_happy

webroot fix and updated seek support
Merge pull request #174 from fetzerch/pr-v1.6.9

[mythtv-cmyth] Release v1.6.9
[vuplus] fix typo in langugage file
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