Estimated hours taken: 4
extras/trailed_update/samples/interpreter.m:
New file. An example of the use of tr_store.m.
samples/interpreter.m:
Add pointer to extras/trailed_update/samples/interpreter.m.
extras/trailed_update/Mmakefile:
extras/trailed_update/samples/interpreter.inp:
extras/trailed_update/samples/interpreter.exp:
extras/trailed_update/samples/vqueens.exp:
New files. Some testing infrastructure.
