Add a URL parameter which sets the initial color for a user, e.g.:
http://example.com/p/mypad?userColor=%2300ff00
Sanitize the given color value to ensure that it's a valid css value
(could be any supported CSS color format -- #fff, rgba(), "red", etc).
Shortly after rejoining a pad, the server responds with a USER_NEWINFO
message which may contain an old color value; however, this message
arrives after we have set and sent the new color value to the server.
To avoid this race condition, if the query parameter has been set,
ignore the color value in a USER_NEWINFO message which matches our user
ID.
moved inInternationalComposition from Ace2Inner to top window
fix bindTheEventHandlers() because ie9 implement CompositionEvent
when inInternationalComposition, NEW_CHANGES msg and ACCEPT_COMMIT msg
are pushed msgQueue.
when handleUserChanges(), apply msgQueue.
The new hook will accept only the message named in the hook call.
It will be used primarily for adding new message handlers, but it
can alse be used to handle existing message types.
