a comment
merge mainline
Revert "merge mainline"

This reverts commit 4de1515252035760970c6a296c72b84831beb583.
Remove redundant version of eval_procedure
Remove unused stuff
Remove set_bindings
Remove some use of variable_unifier
Remove some use of unifiers from the embodiment combo interpreter
Remove test for function I just removed
remove calls to the old duplicate eval system that supported unifiers
Merge github.com:jadeoneill/opencog
Record the arguments to a procedure
MOSES: add missing header includes
MOSES: initial scaffolding for problems
MOSES: add a problem registeration framework.
MOSES: move the sr problem to the demo file

Move another demo problem out of main.
MOSES: move the mux demo problem over.
imore over the dj demo problem

Also avoid endless cut-n-paste
Move over the parity demo
MOSES: register the demo problems earlier