Added "export" capability to templates script - creates zip of all files in directory. Also added "classes" directory under admin to store future class files in. Added phpzip.inc.php class - a slightly modified GPL class from phpclasses.org by Sext (sext@neud.net).

git-svn-id: file:///Users/Shitiz/Downloads/lssvn/trunk/unstable@1052 b72ed6b6-b9f8-46b5-92b4-906544132732