Typescript

[CaptainN]

This PR does two main things:

• Refactors the hook implementation to separate it into two sub-hooks, one for with deps, and one for without. This makes it much easier to read through the code.
• Converts the main hook implementation into TypeScript!

Remaining items

• Finish fixing the tests - I think everything is working, but the tests have gone stale (I'm not sure the remaining broken tests ever worked).
• There may be some better ways to specify the function signature in some places.

Supercedes #282 (fixes #278) and adjusts tests for changes introduced there.

[CaptainN]

This is basically complete, and ready for review.

• There is one more warning about a parse error on the first line - I really have no idea why, it seems fine to me.
• The tests are stalling at a certain point, and I don't know why...

[CaptainN]

Finally got around to fixing the tests (I think I finally got it right - hopefully I won't have to rebuild them again...) - and even added some tests for StrictMode #282. These StrictMode tests could be cleaner/more specific/easier to read - but they do test it, and they are correct.

@filipenevola This is ready for review/release.

[filipenevola]

2.1.0 of react-meteor-data is published now!