Fix for showing unread counts on connection restore.
Fix null reference to userList on query window
Set overflow-x hidden on user-list
Add use_polling config
Add configuration section to README
Add server_whitelist config
Merge pull request #263 from badosu/long-polling-config

Add long-polling setting and heroku support
Merge pull request #261 from badosu/adjust-userlist-overflow-x

Hide horizontal scroll when user list overflows
Merge pull request #260 from badosu/fix-nick-autocomplete-in-query-window

Fix null reference to userList on query window
Merge pull request #262 from badosu/server-whitelist

Server Whitelist
Remove non-implemented config options, case-insensitive matching on server_whitelist.
Add color support