StopAllMonitorEvents: Close the channel instead of sending to it to avoid blocking.
StopAllMonitorEvents: Close the channel instead of sending to it to
avoid blocking.

Signed-off-by: Andrea Luzzardi <442ffe3ffbfd024afcf0b7f8b108d05bca3aae43@gmail.com>

bajh/dockerclient,crhym3/dockerclient,ehazlett/dockerclient,flavio/dockerclient,BlueDragonX/dockerclient,dnephin/dockerclient,samalba/dockerclient,selvik/dockerclient,yp-engineering/dockerclient,donhcd/dockerclient,denverdino/dockerclient,ibuildthecloud/dockerclient,curoverse/dockerclient