[jhc] darcs patch: add a lot more of jgc garbage collector (and 2 more)

8 Apr 2010

      Fri Mar 19 17:55:31 PDT 2010  John Meacham 
  * add a lot more of jgc garbage collector

Fri Mar 26 17:00:12 PDT 2010  John Meacham 
  * remove caf initialization from main routine, let cafs be statically initialized.

Fri Mar 26 17:57:13 PDT 2010  John Meacham 
  * fix GC bugs so garbage collection works