implement backbone's eventDrop

Signed-off-by: Tomas Neme <lacrymology@gmail.com>
remove debug prints

Signed-off-by: Tomas Neme <lacrymology@gmail.com>
Merge branch 'airtime-libs' into move-events
Merge pull request #19 from inaes-tic/move-events

implement backbone's eventDrop