Deal with ? substitution, we're at the point now where we can call the mysql_real_que...

Deal with ? substitution, we're at the point now where we can call the mysql_real_query function
(mysql_real_query takes char* and length params, mysql_query just takes char*, and cant deal with NULLs)
TODO after this: signal the main ircd thread that theres a result ready on a given db id, and to fetch that result and post it back to the caller

git-svn-id: http://svn.inspircd.org/repository/trunk/inspircd@4480 e03df62e-2008-0410-955e-edbf42e46eb7