Insteon: Prevent Calling Success Callback if No Active Message
Merge pull request #324 from krkeegan/fix_success_callback

Insteon: Prevent Calling Success Callback if No Active Message
Merge remote-tracking branch 'remotes/origin/fix_issue_323' into running

Conflicts:
	lib/Insteon/BaseInsteon.pm
	lib/Insteon_PLM.pm