[FIX] Addipban Ascent 2.3.0

[cylas]

Since moving to Ascent 2.3 r2345, we(CoreWoW) were having trouble getting the .addipban command to work properly. Thought it might be a core problem till talking to some other admin friends of mine. Well I found a solution, atleast for us and I want to share it. Problem I found was that the format for the expiration collum was set to something funny, but when trying to modify that it just wouldn't save. I got around this problem by renaming/swapping out the new `ipbans` table with the old table which was named `ipbans_copy`. Here is the quick query i made to do this. I know there was probably an easier or "cleaner" way to do this but it did work for me.

RENAME TABLE `ipbans` TO `ipbans_copy1` ;
RENAME TABLE `ipbans_copy` TO `ipbans` ; 
RENAME TABLE `ipbans_copy1` TO `ipbans_copy`;

Hope this helps.