Feature/config imports

[rwjblue]

Made this PR from @andyhot's feature branch mentioned in https://github.com/rwjblue/ember-module-migrator/issues/48.

[iezer]

👍 On this, I just came across this use case. Thanks a lot @andyhot. I also found a a couple of similar cases where files have moved into src so the paths have to be updated:

• In tests/helpers/resolver.js needs to change from import Resolver from '../../resolver'; to import Resolver from '../../src/resolver';.

• In 'tests/start-app.js,import Application from '../../app';has to change toimport Application from '../../src/main';`

There are examples in this commit

@andyhot do you have to time to add handlers for those files? If not I can try to find time later today.

[andyhot]

@iezer Can you augment the https://github.com/andyhot/ember-module-migrator/tree/feature/config-imports/test/fixtures/config (or perhaps https://github.com/rwjblue/ember-module-migrator/tree/master/test/fixtures/classic-relative-imports since what you're reporting doesn't seem relatedto the config handling) with some failures? Those imports from tests sources should have been working (since https://github.com/rwjblue/ember-module-migrator/commit/9db3d972a167404b4f27a9502395cb8c19909563) but i guess they need some finetuning

[iezer]

@andyhot Yep I'll write some tests for those cases.