Restructured adding new class to the model
Adding new test class to the model from the model outline context menu
improved display of char partitions (toString)
Introduced improved editor:
 - multipaged editor with tree model and source pages
 - EcEditor renamed to EcSourceViewer
 - Model page organised in Master-Details block
 - Master block with Raname and Add Test Class buttons
 - Improved Add Test Class functionality
Cleanup related to using common dialog with editor
Created MasterDetails model for model editor,
created RootNode details page
Added details page for ClassNode
cosmetics
MethodNode details page
added support for removing and renaming test suites
improved renaming and removing test cases and test suites.
Added support for bulk removing of node's children
renamed Strings class into DialogStrings
Added category details page
Improved PartitionSettingsDialog
Fix in removeClass button
Added TestCaseNodeDetailsPage
cleanup
removed model name edit possibility
Added PartitionNodeDetailsPage
refactoring
refactored RootNodeDetailsPage