Renamed the models and some variables.
Modified the form to show multiple roots for the tree.

Modified the model to allow multiple blackboard entries to be shown. However, still need to make a wrapper class for the entries to make the tree more pleasant to read.

Also, synchronization with a database collection still needs to be implemented.
Created EntryObject that wraps a BasicDBObject (and its children) to make the tree more pleasant to read. Also, multiple entries can now be shown.

Synchronization with a database collection still needs to be implemented.
Did some code clean up and moved files to a new package (rexos.client.blackboardreader).

Renamed EntryObject to EntryNode.

Modified the GUI to load new collection entries on selection of a collection.
Added some comments.