ADDED: - new callback post_SlaveStateChange so that a master can monitor the state of its slave nodes using a heartbeat.
* * *
CHANGED: - added missing export for _post_SlaveStateChange (for revision #679)

To generate message.pot file:

	python mki18n.py -p --domain=objdictgen
	
To generate .mo files for all languages:

	python mki18n.py -m --moTarget=../locale --domain=objdictgen