Added MenuExtender class;
Changed some build configs;
Moved some files on the directory tree;
Fixed some missing pragma pop;
Done menu extender!
Also reworked the "plugin/" directory structure (again, jzz)
Merge pull request #3 from CookiePLMonster/master

Various CPool fixes and improvements
Merge pull request #1 from thelink2012/MenuExtender

Add Menu Extender
Documented some fields