added convleave, part of #222 remapped /bot leave to /bot convleave bugfix to allow "quietly" flag in both /bot leave|convleave
added convleave, part of #222
remapped /bot leave to /bot convleave
bugfix to allow "quietly" flag in both /bot leave|convleave

makiftasova/hangoutsbot,jhonnyam123/hangoutsbot,cd334/hangoutsbot