[empathy] (22 commits) ...Merge branch 'ack'

[Jonny Lamb <jonnylamb src gnome org>]

Summary of changes:

  ccc394a... message: store the TpMessage when created with one
  cc5faf8... tp-chat: acknowledge messages using TpTextChannel API
  11120f6... message: stop storing pending-message-id
  7740933... tp-chat: use ::pending-message-removed to update our pendin
  7412b7e... tp-chat: add pending-message-removed signal
  d36a313... chat: make nb_unread_messages incoming only
  4fd01bc... chat-window: update tab when nb-unread-messages changes
  e7afbce... chat-window: also update chat window title when the chat up
  bd0755b... adium: set x-empathy-message-id class in messageStyles
  5080aa2... adium: split removing unread markers into two functions
  96345c9... tp-chat: give ::pending-message-removed the message
  3329e94... chat-view: add message_acknowledged vfunc
  c680509... chat: don't toggle visibility of the chat view on marking m
  bd1d3bc... adium: implement acknowledge_message to remove unread marke
  5af3e56... chat: call acknowledge_message on the chat view when it hap
  d446807... chat: ::notify for all changes to unread messages
  4d140c3... tp-chat: rename signal to message-acknowledged
  46c85cb... tp-chat: call acknowledge_message(s) directly
  1c40d33... adium: add comment explaining why we add x-empathy-mesage-i
  ec99737... tp-chat: don't assert on not finding message
  9e19149... adium: set has_unread_message to FALSE when we think we've 
  2950825... Merge branch 'ack'