monitorEventLoop: reset promise after notifying.
monitorEventLoop: reset promise after notifying.

Change-Id: Id804d5a46890bcdc136e5f65b324857bf38f4127
Reviewed-on: http://gerrit.aldebaran.lan:8080/10614
Reviewed-by: mnottale <e3ccf1b6558404e921a21fa09cebb1153b50ec36@aldebaran-robotics.com>
Tested-by: mnottale <e3ccf1b6558404e921a21fa09cebb1153b50ec36@aldebaran-robotics.com>

vbarbaresi/libqi,aldebaran/libqi,aldebaran/libqi,aldebaran/libqi,bsautron/libqi