* Add fsc as a Scala linter
* Pull reused code into `autoload/ale/` directory
* Include fsc into the README
* Add unit test for testing the scala handler
* Add unit test for scala's fsc linter
* Rename scala unit tests for clarity
* Fix typo in README
* Fix typos in doc/ale.txt
* Fix author headline
* Put methods for fsc commands back into fsc.vim
* Move command_callback tests to correct location
* Rewrite handler test so it actually tests handler
* Clarify description of test in test_scala_handler
