r42Beta2

[Chris Muller]

I have just posted r42Beta2 to SqueakMap.

- When creating a repository, Magma now creates a full-backup "seed"
copy of the repository.  For only the 42K of disk space it consumes,
the seed repository allows any repository which has never been backed
up to be restored to any point in time.  It also allows a
single-server production deployment to go to multi-server without
having to make an initial full-backup.  The seed just rolls forward
via the commit-logs.
- Better support for deployment of multi-server repositories that were
initialized in a different environment than the deployment
environment.
- Support for the new Magma Buffer Browser tool.
- Upgrade to MagmaForwardingProxies.  Cleaner code and a bug fix.
- Fixes to startup sequence to ensure MagmaRepositoryController gets
to startup before MaServerSocket.
- Test suite enhancements.

 - Chris