Jakefile.js, boot/, package.json: removed

  - Completely eliminated build system dependency on node.js.
  - Tests can now be run with `sh test.sh`.
  - Building haskell is done with cabal.
  - boot/ is removed from HEAD, because it is unreferenced right now.
    It can of course be recovered from VCS if required.
  - `jake sublime` is gone. We might reintroduce another install
    script at a later time.