Don't add duplicate listeners to scrolltop event on chat logs.
Always show scrollbar on chat logs table.
Sort server/pm logs on the basis of creation date.
Replace <table> with <div> for server chat logs.
Fix showing user info when PM is selected.
Optimize scrollbar in chatlogs table.
Smooth pagination of channel nicks.

Keep a window of max 40 channel nicks visible and paginate by loading
10 nicks up/down.