* Reorder a bunch stuff so it is alphabetical
* Added purple_message_new and deprecated the other constructors for it.
* Added a new author-name property and marked the author property as deprecated
  for it.
* Added new event and notice properties
* De-dented get_property and set_property
* Turned on warning for deprecated signals and properties in the devenv and
  purple unit tests.
* Added purple_message_set_timestamp_now to set the timestamp to utc now

Cowabunga'd with the turtles.

Sent some messages over dm and channels.