Modernize gem structure
Update gems
Turn the rake task into a file task
Update version
Remove jeweler from Gemfile
Fix a minor bug in GraphViz NodeBuilder
Refactor and document the rake file task
Update testing tools
Refactor nodes
Refactor and improve optimizer
Refactor and clean up optimizer
Dispatch to match methods directly, instead of through #match
Update gems
Update yardoc for ExtendedPackratParser
Refactor Analysis
Make test the default rake task again
Make test tasks depend on metagrammar task
Increase test coverage for SimplyRedundantRepeat optimization
Remove .rvmrc
Update gems