Change all the PHP code to use _mysql_query() instead of mysql_query()
(and similar for other functions).
_mysql_query() uses the mysqli API if available, else the old API.
Going forward, all PHP code should the DB abstration layer if possible;
else it should use the _mysql_* functions.
Got rid of auth_ops_cmdline() (not needed).
auth_ops() is now called in util_ops.inc;
every script in html/ops/ must include util_ops.inc.
Note: for existing projects, the admin web interface
will now show "access denied".
Projects must think about what access control policy they want,
and specify it in project.inc
svn path=/trunk/boinc/; revision=19053
Vitalii Koshura