Add cog-execute! Scheme command to execute an ExecutionLink
Adding unit test for cog-execute
Adding unit test for cog-execute
Merge branch 'scm-execute' into execute
Now it builds
Update formatting
Remove unused needs_pee and needs_poo combo predicates
Merge pull request #704 from cosmoharrigan/execute

Add cog-execute! command to execute an ExecutionLink from the Scheme shell
Remove more pet actions