Revision 196

This creates a branch of rev 167 to apply a few olpc stable bug 
fixes to prior the the full switch over to to fastpath.

Since the svn repository was not layed out with branches in mind 
the way I created this branch is a a bit questionable.  svn copy
only copies one top level dirctory at time.  So to create the dirctories
in branchs I did 'svn copy -r <dir> branches/b167' 
for <dir> in [forth,cpu,ofw,dev,README]