Change option and messages for showing early releases.
Update Release Notes to correct an error re: zombie reports and include a section for beta 2+ fixes.
If you are running a test version of OSCAR, it will first try to read versions.xml from your OSCAR_Data directory.
If that fails, it will go to www.sleepfiles.com/OSCAR/versions/versions.xml
The purpose of this approach is to allow you to test different settings in versions.xml
This debug feature will probably be removed, or changed, when a release version is built
Checks for updates to OSCAR at startup and profile close.
Also allows user to check with Help/Check for updates.
Updates controlled by versions.xml in www.sleepfiles.com/oscar/versions