* Update all submodules
* Ensure always using lastest docker image
* Allow passing in GEM_VERSION from env
This is useful to building test gems in a cache friendly way using:
`GEM_VERSION=$(git describe --tags 2>/dev/null | sed 's/-/./g' | sed
's/v//') bundle exec rake build_gem`
* Update submodules one last time
* Set version 6.0.0
* grammars: Update several grammars with compat issues
* [WIP] Add new grammar conversion tools
* Wrap in a Docker script
* Proper Dockerfile support
* Add Javadoc grammar
* Remove NPM package.json
* Remove superfluous test
This is now always checked by the grammars compiler
* Update JSyntax grammar to new submodule
* Approve Javadoc license
* grammars: Remove checked-in dependencies
* grammars: Add regex checks to the compiler
* grammars: Point Oz to its actual submodule
* grammars: Refactor compiler to group errors by repo
* grammars: Cleanups to error reporting
