Merge pull request #1 from rebcabin/bbeckman

redo stack and execAllTrace RE David
Merge pull request #2 from rebcabin/bbeckman

all ClearAll[square] so notebook is idempotent
Merge pull request #3 from rebcabin/bbeckman

Bbeckman
Merge pull request #4 from rebcabin/bbeckman

Add exceptions to top and next
Merge pull request #5 from rebcabin/bbeckman

Added ClearAll[instructionSet] for idempotency
Merge pull request #6 from rebcabin/bbeckman

Fixed erroneous assertion in text of Fugue
Merge pull request #7 from rebcabin/bbeckman

Bbeckman
Merge pull request #8 from rebcabin/bbeckman

Bbeckman
Merge pull request #9 from rebcabin/bbeckman

Small bug fixes
Merge remote-tracking branch 'origin/master' into bbeckman