fix useTypescriptIncrementalApi flag to work according to docs

[yanivefraim]

useTypescriptIncrementalApi doesn't work as supposed to - it is not true by default, for TS version > 3.

fixes #222

[johnnyreilly]

First of all, thanks for this - good catch!

There's now some failing tests which I believe are related to #219

i.e. the incremental compiler has some issues with Vue which we hope will be solved by this PR:

#220

In the meantime, you could fix it by forcing the Vue tests that are failing to not use the incremental API. That would work for now. Sound good?

Actually - better idea: could you apply the changes from this commit to your PR: 90836f2 (apart from the reasons.md that is). That should stop the incremental API being used and the tests should pass.

[yanivefraim]

Actually - better idea: could you apply the changes from this commit to your PR: 90836f2 (apart from the reasons.md that is). That should stop the incremental API being used and the tests should pass.

@johnnyreilly - I cherry-picked 90836f2, without the readme part, wasn't sure about tests, so I just kept them...

[johnnyreilly]

Awesome. Thanks!

Could you increment the version in the package.json and put an entry in the CHANGELOG.md please? I'll then merge and push out a release

[yanivefraim]

Could you increment the version in the package.json and put an entry in the CHANGELOG.md please? I'll then merge and push out a release

@johnnyreilly - done

[johnnyreilly]

Thanks!

[johnnyreilly]

Will go out with https://github.com/Realytics/fork-ts-checker-webpack-plugin/releases/tag/v1.0.0-alpha.10

Thanks again!