0.9	better yacc error handling
0.9	clean up behavior of control-c
0.9	clean up parse.y
0.9	cut down amount of memory initialized in the parser
0.9	externalize mutual recursion correctly
0.9	figure out performance consequences of disabling gc
0.9	hook for calls to wait()/ewaitfor()
0.9	make -x more like it is in sh and rc?
0.9	multiple assignment
0.9	openbuffer/sealbuffer directly into gc space
0.9	trip.es
1.5	make user functions properly tail recursive
1.5	meta-circular decompose operation
1.8	librarification
1.8	reentrant parser
