Upped Private Message Character Limit

[kato13]

For the first time I hit the 5000 character limit for a private message. I have upped it to 10,000 as the system can certainly handle it with this load.

If anyone ever bumps against a limit like that. Like if you want the capacity of the PM system raised, just let me know. Also if you get any weird errors you cant get past shoot me a pm.