Fixed 3 issues.  One issue with the registration was being caused by an incompatibility between recaptcha and IPv6.  It was causing the could not open socket message.  Another issue was with several of the mpd.conf variables that were not getting set properly.  That was causing the startup of MPD to fail for the new user.  The 3rd issue was occurring when deleting a user.  A function was not defined because the file that contained the function was not being included.