removed Runtime/exec testing
Revert "updates to documentation; base case fixes"

This reverts commit b381f7db0766e0e11c4c7878dcf58fad2a39bd79.
Revert "Revert "updates to documentation; base case fixes""

This reverts commit 3446a9c8a537de0f0983b7bb3f350fe5a068fd77.
Revert b381f7d..c1389ee

This rolls back to commit b381f7db0766e0e11c4c7878dcf58fad2a39bd79.
rollback to good/clean version