Link to the issue: #3166
Add "npm run esfix" command
Add "no-multi-spaces" linting rule
Fix linting errors with "npm run esfix"
Coverage remained the same at 100.0% when pulling e887d16 on RomanovRoman:eslint_imports into 7f31924 on marionettejs:master.
This looks good to me. Thanks for your work @RomanovRoman!