Pimped testsuite, session 2


- Fixed #400. Added at all tests the TestCase class as direct or indirect parent class.
- Added more verbose outputs at the test/bin/setup scripts.
- Added DB_HOSTNAME to the test setup scripts.
- Fixed some schema parser bugs in PostgreSQL and MySQL parser.
- Fixed DDL generation in MySQL and PostgreSQL.
- Added migration tests against real database instances with reverse engineered prove (schemaparser classes).
- Fixed some test for the previously commit changes.

More information in each commit message.