This class contains version and authorship information. It contains only static data elements and basically just a central place to put this kind of information so it can be updated easily for each release. Version numbers used here are broken into 3 parts: major, minor, and update, and are written as v.. (e.g. v0.10a). Major numbers will change at the time of major reworking of some part of the system. Minor numbers for each public release or change big enough to cause incompatibilities. Finally update letter will be incremented for small bug fixes and changes that probably wouldn't be noticed by a user.