reenabled password test

according to Dominik Eckelmann one of the tests fails on certain servers. I can't
reproduce it. If you can, please open a bug report with as much info as
possible.

skip SSL tests whn no SSL support in PHP

some first tests for the Mailer class

reenabled romanization test

The test can be skipped by excluding the "slow" group.

some cleanup

removed unneeded data files, converted tabs to spaces

added html_hilight test

This didn't really need runkit. The way runkit was used didn't add any
more credibility to the test result

moved _testing to _test