Work on event listeners

Mouse listener and quiz button
Init runQuiz

basic stub of runQuiz()
Prettifying

Added comments on MouseListener stubs
New TODO

just committing so I can merge; sorry for the bother
Merge branch 'Joe' into Adam
Adding loadData function
Work
Merge branch 'master' into Min
Fix missing semicolon in countryData
Change init() to setUp() in MapPanel

So as to disambiguate the launch point of the applet to be in
WelcomeWindow
Switching Panels

Makes the welcome menu button switch to MapPanel
Adding Maps and Stuff
Rearrange comments
Solidifying Initial UI
Minor comment change
Merge branch 'Mike' into Adam

Conflicts:
src/project/MapPanel.java
src/project/WelcomeWindow.java
Cleanup to DataManager

misc commenting out of unneeded code, adding of stubs of needed
methods, etc.
Pulled MapMode into its own file, etc

Also includes some minor cleanup of unneeded junk in MapPanel
Merge remote-tracking branch 'origin/Min' into Adam

Conflicts:
	src/project/MapPanel.java
	src/project/WelcomeWindow.java
Leftover merge cleanup in WelcomeWindow