Corrected bugs in pimm.mapper:
-classpath was incorrect
-changed PiScenario to PreesmScenario wrt. scenario merging
-add missing import
Removed org.ietr.preesm.experiment.pimm.visitor.scala project.
Merge branch 'develop' into pimm2sdf
Corrected a bug in PreesmScenario: getOperatorIds cannot return a null pointer anymore.
Formatting
Merge branch 'pimm2sdf' into merging-scenario-editors
Corrected a bug in ConstraintsPage: when a graph with more than two level of hierarchy was checked, lower levels (3rd and beyond) were not checked.
Corrected a bug in PiParametersPage: listener was missing, preventing from saving changes in parameter values.