call $apply after get new channel list
implement message hist as angular Service
increase modularity : split commandCtrl from mainCtrl
move ircJoin command to commandCtrl
dont ask message history more than once
resize
call apply after add message to status page
get unread messages of a channel
implement read/unread message of a channel
remove MsgHistUnreadChannel : we dont use it anymore
initialize ChatHist object on loading
mark message as read after user see the message
fix missed readFlag
fix markAsRead new channel message
nick read/unread message
fix nick history