Format eslint errors consistently across commands using the codeframe styler

[eliperelman]

Fixes #380.

Output of a sample project with an eslint warning and error:

❯ yarn lint
yarn run v1.3.2
$ neutrino lint
✖ Running lint failed
warning: 'use strict' is unnecessary inside of modules (strict) at src/index.js:1:1:
> 1 | 'use strict';
    | ^
  2 |
  3 | const root = document.getElementById('root');
  4 |


error: Missing semicolon (semi) at src/index.js:5:89:
  3 | const root = document.getElementById('root');
  4 |
> 5 | root.innerHTML = '<div style="padding: 20px"><h1>Welcome to 6cbcd59625d4f957</h1></div>'
    |                                                                                         ^
  6 |
  7 | // This is needed for Hot Module Replacement
  8 | if (module.hot) {


1 error and 1 warning found.
1 error and 1 warning potentially fixable with the `--fix` option.
error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.

/var/folders/dl/9lrzd5110zlft676qdpr7xn40000gp/T/6cbcd59625d4f957

❯ yarn start
yarn run v1.3.2
$ neutrino start
✔ Development server running on: http://localhost:5000
✔ Build completed

ERROR in ./src/index.js
warning: 'use strict' is unnecessary inside of modules (strict) at src/index.js:1:1:
> 1 | 'use strict';
    | ^
  2 |
  3 | const root = document.getElementById('root');
  4 |


error: Missing semicolon (semi) at src/index.js:5:89:
  3 | const root = document.getElementById('root');
  4 |
> 5 | root.innerHTML = '<div style="padding: 20px"><h1>Welcome to 6cbcd59625d4f957</h1></div>'
    |                                                                                         ^
  6 |
  7 | // This is needed for Hot Module Replacement
  8 | if (module.hot) {


1 error and 1 warning found.
1 error and 1 warning potentially fixable with the `--fix` option.
 @ multi (webpack)-dev-server/client?http://localhost:5000 (webpack)/hot/dev-server.js ./src/index
^C

/var/folders/dl/9lrzd5110zlft676qdpr7xn40000gp/T/6cbcd59625d4f957

❯ yarn build
yarn run v1.3.2
$ neutrino build
✖ Building project failed
./src/index.js
Module build failed: Module failed because of a eslint error.
warning: 'use strict' is unnecessary inside of modules (strict) at src/index.js:1:1:
> 1 | 'use strict';
    | ^
  2 |
  3 | const root = document.getElementById('root');
  4 |


error: Missing semicolon (semi) at src/index.js:5:89:
  3 | const root = document.getElementById('root');
  4 |
> 5 | root.innerHTML = '<div style="padding: 20px"><h1>Welcome to 6cbcd59625d4f957</h1></div>'
    |                                                                                         ^
  6 |
  7 | // This is needed for Hot Module Replacement
  8 | if (module.hot) {


1 error and 1 warning found.
1 error and 1 warning potentially fixable with the `--fix` option.
 @ multi ./src/index
error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.
```