Changed out the dictionary in here for an observable dictionary. I just
think the code looks cleaner like this. I also think it will be easier
to maintain when we start grouping events together
added some extra stuff to try to debug the null pointer issue in the
GwApi
Added an object to allow the UI to easily display the groups of all
events per map in a tree view form.
Removed the key file. This is not needed anymore as I have removed
signing.
added the new Common and MapDataManager projects to the build project