Added the correct button's functions

Also deleted the button to gamecontroller
added a dialog for the play option

Added a fragment to handle the dialog. Added the string array to display
in the dialog.
Main activity starts the dialog when play is pressed
Added an interface to handle the selection back in the main activity.
Game Controller updates

+Exit Game, with confirmation dialog
+Save game option, with confirmation
+Countdown Timer
+Game Paused when Menu opened
+End of Day summary
+End of Game Summary
+Back button shows exit confirmation and goes back to main menu
+Business class object
Finished the Main Menu functionality

Tested it as well
Delete MainActivity.java
Merge branch 'MainMenu_Activity_Branch' into GameController_Branch

Conflicts:
	BusinessSim/src/com/game/businesssim/MainActivity.java
Merge pull request #4 from icarreras/MainMenu_Activity_Branch

Merge the main menu and the gamecontroller