Release 1.0.0-alpha-3: 2009-01-18

7 issues resolved. Main driver for this release - maven-3.0-alpha-2 prep. 
and mercury based tools: mercury-ant in particular.

APIs are not stable yet, major changes:
- plexus component has been altered to handle resolution of multiple artifacts
- DependencyBuilder has been changed to handle global inclusion/exclusion lists
- Virtual Repository exception handling has been changed to correctly report back 
  missing metadata, yet process multiple repositories correctly