small refactoring + added observer of controls to outlineview

...c/de/bmotionstudio/gef/editor/AppContextMenuProvider.java

...motionstudio/gef/editor/BMotionSelectionSynchronizer.java

.../de/bmotionstudio/gef/editor/BMotionStudioEditorPage.java

...src/de/bmotionstudio/gef/editor/BMotionStudioRunPage.java

...tor/src/de/bmotionstudio/gef/editor/IBControlService.java

.../bmotionstudio/gef/editor/action/BringToBottomAction.java

...tionstudio/gef/editor/action/BringToBottomStepAction.java

.../de/bmotionstudio/gef/editor/action/BringToTopAction.java

...bmotionstudio/gef/editor/action/BringToTopStepAction.java

...src/de/bmotionstudio/gef/editor/edit/TextEditManager.java

.../bmotionstudio/gef/editor/editpolicy/BMSDeletePolicy.java

...tionstudio/gef/editor/editpolicy/BMSEditLayoutPolicy.java

...motionstudio/gef/editor/editpolicy/BMSFlowEditPolicy.java

...motionstudio/gef/editor/editpolicy/BMSNodeEditPolicy.java

...nstudio/gef/editor/editpolicy/BMSResizableEditPolicy.java

...onstudio/gef/editor/editpolicy/ChangeAttributePolicy.java

...nstudio/gef/editor/editpolicy/CustomDirectEditPolicy.java

...nstudio/gef/editor/model/ObserverRootVirtualTreeNode.java

...tor/src/de/bmotionstudio/gef/editor/part/BButtonPart.java

...r/src/de/bmotionstudio/gef/editor/part/BCheckboxPart.java