Tried to add more apps (others break).
"preprocessors" is now populated automatically based on the tested apps.

Paths without the leading slash apply to all subdirectories, which especially
means that /tests/data is ignored, making it unnecessarily hard to add test
data.

Filled username field when oc_username is set repaired.
Problems with "advanced settings" button in installation wizard fixed.
CSS improved - login and installation now looks more clean.
Request password link removed (email feature not implemented yet).
Database radio button bugs removed.
It is possible to have an empty database password, now ownCloud will support this "security issue".
Ignore Mac OS X ".DSstore" files.
Fade in/out of login button and remember checkbox removed due to some display errors.