TypeScript compiler will now build to ES2015 code and modules. Babili is used to minify ES2015
code, providing an initial optimization that we couldn't previously get just from Uglify. Uses
Babel to convert ES2015 to UMD/ES5 code, and Uglify to minimize the output.
Previously, the `integration/` tests were failing, because `concurrently "foo"`
does not inherit the `PATH` env var ([more info][1]).
This commit fixes it, by setting the `PATH` env var explicitly:
`concurrently "PATH=$PATH foo"`.
This commit also includes some minor refactoring of the `integration/` tests scripts:
- Move build-related operations to `ci-lite/build.sh` (for consistency).
- Use `yarn run ...` instead of `npm run ...` inside package.json scripts.
- Use global `yarn` (since we are already using it for `aio/`).
- Fix some `travis_fold` statements.
[1]: https://github.com/kimmobrunfeldt/concurrently/issues/61#issuecomment-252081610
* feat: add an env for testing closure builds
* build(npm): add dev dependency on yarn (and remove dev props for readability)
* build: refactor integration test runner
Jason Aden
Alex Eagle
George Kalpakas
Alex Eagle