added original csrf class

git-svn-id: http://prositemanager.googlecode.com/svn/trunk@49 e374cdb8-7ee8-0d77-fd1e-c554042f9154
finished PassCrypt class
added san() function to DB class
started working on User class
  login code almost finished
added empty PriorityArray class
added Session class - needs session availible checking

git-svn-id: http://prositemanager.googlecode.com/svn/trunk@50 e374cdb8-7ee8-0d77-fd1e-c554042f9154