Previous builds failed due to a missing config.ini.php.
Using the before_script command we now copy a configuration file 
to config/. We also create a database for tests.

PHPUnit complained about missing XDebug - so this is added.


git-svn-id: http://dev.piwik.org/svn/trunk@7833 59fd770c-687e-43c8-a1e3-f5a4ff64c105
fix build

git-svn-id: http://dev.piwik.org/svn/trunk@7834 59fd770c-687e-43c8-a1e3-f5a4ff64c105