* Use vector name as axis object text, avoid identifier text
* Select the plot clicked at in the Project Tree
* Make sure RFT plots are updated when summary case and ensemble is changed
* Make sure all plots are updated for multiselect and toggle statistics
* Allow paste of plot on top level plot collection
* Allow multiple top level plots as destination for Append operations
* Get rid of "ghost" windows on startup.
Removes hide all docking windows feature for now, to be replaced by a new implementation. Will probably break some tests due to this.
* Main Window: add three dock widgets for splitting project tree
* Main Window: move scripts to separate tree widget
* Add eclipse result addresses to data source project tree.
* Grid Calculator: drag-and-drop for calculation variables.
* Grid Calculator: rename to 'Grid Property Calculator'.