Created a MenuBar class. I Will try to remove menu elements from the GUI
class and see how it works out. I'm also thinking of using the
internationalization keys to name components for the action manager.
Removed menu elements from the GUI class and added a field of type
MenuBar instead. it's working pretty well.
updated comments
fixed compatibility with java 6
Added a name to the menu elements corresponding to their
internationalization key. That name is used when the language change to
redraw the component and can be used with the Actionmanager (since each
key is unique)
Merge branch 'master' of local repository into externalizeMenu

Conflicts:
	src/foldr/main/GUI.java
Merge branch 'master' of local repository into externalizeMenu

Conflicts:
	src/foldr/main/GUI.java
Merge pull request #16 from beloitcollegecomputerscience/externalizeMenu

Externalize menu