Fixed a bug in experiment where we weren't closing files.
Expanded the stack size for tests.
Added option for varying what gets printed by Experiment.
Added --mutations option to Experiment.
Increases heap and stack size for experiment.sh
Removed updated.filter in favor of using the updated flag in Node.
Introduced Keys into DoubleModListNodes
Merge remote-tracking branch 'upstream/master'
Fixed a bug where a parent of an already memo matched node could also be
matched.
Updated timestamp algorithm to use Node.matchable, fixing a random bug.
Added help output and short options to experiment.sh
Small bug in experiment.
Replaced chunkSizes with inputSizes.
Gave reads a second timestamp to speed up memo checking and moved memo-related
code out of TBD and into class Lift.
Merge remote-tracking branch 'upstream/master'
Fixed last reduction bugs