fix transition bug
Merge branch 'master' of git.openmole.org:openmole
fix error sentence
Federate thread pool among environments.
fix bug on transition removal
Merge branch 'master' of git.openmole.org:openmole
Fix prototype reset in Factors
fix bug on generated prototypes
Refactor serialization in gui.
Merge branch 'master' of git.openmole.org:openmole

Conflicts:
	gui/core/org.openmole.ide.core.implementation/src/main/scala/org/openmole/ide/core/implementation/dialog/ConnectorPrototypeFilterDialog.scala
	gui/core/org.openmole.ide.core.implementation/src/main/scala/org/openmole/ide/core/implementation/sampling/SamplingConnectorWidget.scala