pony-test now recognizes module at point

Added some functionality so that pony-test can build up a fully
qualified module.class.function path.

This was necessary for me because all my tests are kept in a separate
tests application.
Merge branch 'pony-test-module-support' of https://github.com/bartvandendriessche/pony-mode into bartv-master
Adding bart.vandendriessche@gmail.com to AUTHORS