Planned changes:
* The event/plugin API has no clean means of "cancelling" the event. I'll put something in place for this.
* Swift_Connection_Exception will be renamed to Swift_ConnectionException for the sake of consistency in the naming of my exceptions -- I'm aware this will break some people's code, but nothing a very basic search & replace won't fix.
* Swift_Connection (interface) and Swift_ConnnectionBase (abstract class) will be merged into a single abstract class replacing "Swift_Connection".
* PKCS#7 Signed messages will be available
These are fairly minor changes. I'm open to suggestions on other minor changes so let me know if there's something niggling in the 3.2.x versions before I get to 3.3