Add root imports with tilde prefix

[selbekk]

This commit adds babel-plugin-root-import to the default .babelrc file to define ~ as the absolute path to the src/ folder.

This gives us the possibility to turn code like this:

import SomeUtility from '../../utils/some-utility'

to this

import SomeUtility from '~/utils/some-utility';

The main upside of using this pattern in contrary to the approaches suggested in #741 is that it highlights what is a local import and what is a node_module import.

Fixes #849.

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[gaearon]

Thanks for the PR but this is not the approach we’re likely to take because it breaks many integrations and third-party tools.

Instead, we intend to implement this approach: #741. If you could research that, and submit a PR for it, it would be very welcome!

[selbekk]

Oh... okay.

[jasan-s]

@selbekk any update on this matter? I'm using the ducks model for my file structure.