added cr to Transcript show in createConstraints

Sudoku-mg.93
renamed 'count:result:'

Puzzles-mg.37
renamed method 'count:result:' to 'count:equals:'

Constraints-mg.130
empty log message

Constraints-tfel.131
revert accidental changes, only add mod and ~= messages
added temporary inequality operator for ConstraintArrays

Constraints-mg.139
merge

Puzzles-tfel.39
remove new Mw test
update the constraint debugger, so it can be used as the default debugger. It now activates ccm mode on demand when stepping through a #alwaysSolveWith: frame, and deactivates it when stepping out

Constraints-tfel.140
update the constraint debugger, so it can be used as the default debugger. It now activates ccm mode on demand when stepping through a #alwaysSolveWith: frame, and deactivates it when stepping out

Constraints-tfel.140
update with latest sources
add tests from executable semantics
update README