Improve implementation of sortAcrossGroups
Add specs
Add travis.yaml
Add more fixtures
Adjust travis emails
Add more specs
Convert readme to markdown
Add spec for multiple newlines
Enhanced syntax to handle string interpolation

- Added syntax highlighting for variables inside s", s""", f" and f"""
  expressions
Merge branch 'master' of github.com:derekwyatt/vim-scala

- Allow scala comments to contain comments /sprsquish
Simple fix to keep it to 80 columns
Merge branch 'lenniboy-master' /lenniboy

- The PR does the following:
-- Adds unit tests via vimrunner - at the moment only the sorting is covered
-- Improves the sorting function (I found a few bugs by writing the unit tests)
-- It converts the README to Markdown since I think that code samples are easier
   to read when rendered with syntax highlighting by Github. If you want to see
   what it looks like: https://github.com/lenniboy/vim-scala/
- The tests can also be automatically executed by TravisCI. If you want to
  activate it for your repository, follow these steps:
  http://about.travis-ci.org/docs/user/getting-started/