Update bp-xprofile-custom-fields-type.php

Bug in setting up add_filter.

It requires a priority parameter first before the accepted_args so it only send the hidden fields.  The other 2 fields $display_user_id and $current_user_id is set to 0 and the function returns erratic or no results because of that.
Merge pull request #1 from moggedb/patch-1

Bug in setting up add_filter.

It requires a priority parameter first before the accepted_args so it only send the hidden fields. The other 2 fields $display_user_id and $current_user_id is set to 0 and the function returns erratic or no results because of that.

By moggedb. Thanks!