exit dialog + JMenuBar upgrade

changed from JToolBar to JMenuBar, added JDialog for exiting game
Cards panel

Craeted new panel ready for drawing specific charcters cards. TODO: make
images, or other to display each card
Revert "player names are now actually set"

This reverts commit b74ccfe426cca7820a0b93cfbceacd607c44871b.
Merge branch 'master' of git://github.com/LiamDeGrey/Cluedo