PartitionNode extension for hierarchical models
added tests for constraints
cosmetics
removed relations different than = and !=
added support for TreeViewerColumn
icon for abstract partition node
removed not used test files
updated abstract partition icon
updated statement tests
new color for abstract partition
updated model for handling hierarchical partitions
gui update for hierarchical model
new unit tests
added getQualifiedName()
minor update
merged missed restructure changes
more forgotten restructure changes
implemented tree search for node name
minor fixes and improvements
changed regex for new partition name