orocos-toolchain/orogen — pull request #3 by goldhoorn (2014-07-01 11:05:09+00:00)
Title: gen: only send state-changes if the change occur.

This prevents a flood of messages in the logs (and syskit).
I recognized oftten that user simply call the state(FOO) function
independently if a change is needed.
This commit will only send the events if the new state is different than
the old one.