Added Tabbed Pane to PIV

Tabs for tables displaying Project and Tasks as tasks should be
viewable/editable without needing to select a project.
Tasks Table Setter

Added setter for tasksTable model in PIV
ProjectDetailView development & more

Finished code to display relevant data in the project detail view.
Converted TaskDetailView to a JPanel.
Added some toString() overrides.
Modified XML files for testing purposes.
Merge pull request #6 from Kirstyvox/master

PIV Tabbed Pane with Projects/Tasks tables
Merge remote-tracking branch 'upstream/master'
Allowed Model Choice controller to receive Collection Object, so it can receive SetOfXXX objects