version 4, alpha 4 release

A much updated release. Almost ready for an official release.

The third alpha release of the project.

This is the third alpha release of the SDB GUI.

Second alpha release of the SDB 4.

This is our second alpha release of the Semantic DB 4.

First alpha release of SDB 4.

This is our first alpha release of the Semantic DB 4, a GUI version of the SDB 3.1.