Merge branch 'master' of https://github.com/hollie/misterhouse

Previously, insteon cleanup messages received by MH, would cause MH to clear the active message
withoug confirming if the cleanup message corresponded to the active message.

If multiple PLM scenes were sent sequentially, a cleanup message from one scene may have caused
MH to clear out the following scenes command.

This patch only clears the active message if the cleanup message matches the active message.