Alpha 0.3 released

Today I've released Alpha 0.3. While it is still recommended that you not use this release for production purposes, it does have a basic installation system that you may be able to use to try ClassSimple out. A few features, like the page editor, are still not compatible with the installer and thus would require significantly more work to get to work.

Highlights of this release are:

* Quiz modules – includes quiz construction, administration, and automatic grading with statistics. Importing grade results into grade module not supported yet.
* Basic installer
* Small modifications to most modules.