Version 5.0.2

[cfis]

Version 5.0.2 of CPK is now available. It is compatible with Rails
3.2.0, 3.2.1 and 3.2.2

Change include:

* Use .rdoc extension on RDoc files (Elia Schito)
* Update documentation to use self.primary_keys instead of
set_primary_keys (Miguel Fonseca)
* Added tests for comparing composite ids (Jim Jones)
* Updating the README for clarity (Brett Fishman)
* Fix method signature mismatch with active_record (Miguel Fonseca)
* Fix ref in README (Elia Schito)
* Add test for habm create (Charlie Savage)

Thanks,

Charlie