Bugfix for subforums not having category defined

Hello Daris,

After conversion, I noticed that my subforums didn't show in the forums admin page or in the search page.  At first, I thought it was a bug in the subforum mod, but once I modified the forum admin file then edited my subforums, they appeared twice after edit !  So I checked in my database, to figure out that my subforums weren't attached to any category white they were supposed to be attached !  This was caused by the fact that on CB, the subforums had the cat id set to 0.  So I modified the forums conversion file in order to correctly assign a category to all subforums.

Could you pull my commit into your repo please ?

Thanks in advance.

MissGeek