Add editorconfig.
Document presence of .editorconfig file
Specify EOL and charset in editorconfig
Specify NPM-generated file style in editorconfig
Order editorconfig properties alphabetically
Add Gilles Fabio as a contributor
Add editorconfig file

Add Gilles Fabio as a contributor
Closes #118

* editorconfig:
  Add Gilles Fabio as a contributor
  Order editorconfig properties alphabetically
  Specify NPM-generated file style in editorconfig
  Specify EOL and charset in editorconfig
  Document presence of .editorconfig file
  Add editorconfig.