Fix Hooks so multiples can be loaded at the same time.

git-svn-id: https://svn.code.sf.net/p/freeghost/code/trunk@1812 71f96598-fa45-0410-b640-bcd6f8691b32
Change lib/hooks hooks to false for active state.  Add RestrictUAA.hook.php.  Add Location hook to add location to tasks.

git-svn-id: https://svn.code.sf.net/p/freeghost/code/trunk@1813 71f96598-fa45-0410-b640-bcd6f8691b32