Revert "Ingnore duplicate messages from a device within a 2 second timefame. This is currently only"

This reverts commit 72e3f49b2939eba4c15c2a19a9a20427e2c7d1e0.
insteonplm: separate message handlers into reply and all-link, and implemented group sensitivity.
Needs more testing.
Merge branch 'integration' of /home/pfrommer/Documents/openhab into integration

Conflicts:
	bundles/binding/org.openhab.binding.insteonplm/src/main/java/org/openhab/binding/insteonplm/internal/device/MessageHandler.java
insteonplm: fixed error due to merge with Rob's changes. Hope I got this right..