Summary: First mercurial integration of the code for the Garbage-First garbage collector.
Reviewed-by: apetrusenko, iveresov, jmasa, sgoldman, tonyp, ysr

Summary: Move os_cpu/linux_sparc from closed to open
Reviewed-by: kamg

Summary: Initial checkin of JSDT code
Reviewed-by: acorn, sbohne

Summary: Moved makefiles out of build and build/closed into make/
Reviewed-by: kvn, ohair