Get *.js indentation from .editorconfig file

[andrewdeandrade]

Fixes: https://github.com/uber/lint-trap/issues/39

Once this is accepted, I'll cut 0.5.0 (breaking api change since you need an .editorconfig file). Let me know if I should make editorconfig optional. My gut is no since .editorconfig does a lot to help multiple people working on the same project.

cc: @raynos

[Raynos]

@malandrew

Semver is not optional. if you make a breaking change you got 1.0.

In fact, the fact that you have any project that is <1.0 is silly, all modules should start at v1 or v2 out of the gate.

If you have some sort of emotional attachment to version "1.0" then forget that. Communicating with your users is always more important.

[Raynos]

Please ship with a default editorconfig in the rc folder.

[andrewdeandrade]

Got it.

Todo:

• Default .editorconfig or don't require it.
• Bump to version 1.0.0.
• use find module instead of Array.prototype.find polyfill

[andrewdeandrade]

@Raynos

Let me know if this is okay now.

[andrewdeandrade]

Since I'm going to cut a 1.0.0 for this, I'm also resolving these issues:

• https://github.com/uber/lint-trap/issues/86
• https://github.com/uber/lint-trap/issues/82
• https://github.com/uber/lint-trap/issues/83

[andrewdeandrade]

Resolving https://github.com/uber/lint-trap/issues/76

[Raynos]

lgtm.