See #14. Add JSON support.

JSON is processed as if it were JavaScript.
I have tested it (see examples/simple-jsbeautifyrc/test.json)
and it works as expected and supports comments!
Merge branch 'master' of github.com:Glavin001/atom-beautify
See #14. Working SQL beautifier. TODO: Use config options.
Add example SQL query for #14.
Closes #14. Completed support for SQL.

- Updated README
- SQL now can apply the indent_char and indent_size options.
Merge pull request #23 from Glavin001/master

Add SQL and JSON language support