expanding connections no longer causes model elements to move
generated source code
Merge branch 'master' of
https://github.com/deep-modeling/melanee-core.git

Conflicts:
	plugins/org.melanee.core.modeleditor/src/org/melanee/core/modeleditor/edit/parts/ComplementEditPart.java
	plugins/org.melanee.core.modeleditor/src/org/melanee/core/modeleditor/edit/parts/Connection2EditPart.java
	plugins/org.melanee.core.modeleditor/src/org/melanee/core/modeleditor/edit/parts/ConnectionEditPart.java
	plugins/org.melanee.core.modeleditor/src/org/melanee/core/modeleditor/edit/parts/Entity2EditPart.java
	plugins/org.melanee.core.modeleditor/src/org/melanee/core/modeleditor/edit/parts/EntityEditPart.java
	plugins/org.melanee.core.modeleditor/src/org/melanee/core/modeleditor/edit/parts/EqualityEditPart.java
	plugins/org.melanee.core.modeleditor/src/org/melanee/core/modeleditor/edit/parts/InheritanceEditPart.java
	plugins/org.melanee.core.modeleditor/src/org/melanee/core/modeleditor/edit/parts/InversionEditPart.java