IMPORTANT: fixed passwd handling for passwords stored in prefs:

IMPORTANT: fixed passwd handling for passwords stored in prefs:
  fix encrypted usage, actually store and retrieve them from db
  fix bogologin with passwd set.
fix php crashes with call-time pass-by-reference (references wrongly used
  in declaration AND call). This affected mainly Apache2 and IIS.
  (Thanks to John Cole to detect this!)

git-svn-id: svn://svn.code.sf.net/p/phpwiki/code/trunk@3684 96ab9672-09ca-45d6-a79d-3d69d39ca109