o adjusted MachineSpec to generate parentheses in expressions only as much as associativity rules require
o added a rewrite phase in the generation of Z3 code where we apply the one-point rule to existential quantifications in the goal; this is done after the application of monotonicity rules
o fixed a glitch in the interactive mode of the verifier where line scrolling in the terminal would carry old text up next to unrelated information
o added one refinement to machine m0 in the example of the lock-free algorithm
o converted the proof obligation function of event schedulability to use of POGenerator monad