Use typings; tsd is deprecated

[mikekidder]

Was going to push earlier, but saw you had updated tsd. :)

package.json - removed tsd, adds typings.... the rest is just from alpha sorting

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[mikekidder]

CLA, I signed it!

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[alexeagle]

Don't remove this line - this is an output of the package. It allows users to
import {Zone} from 'zone.js';
and the typescript type-checker can find it.

[mikekidder]

Ah, good to know. Wasn't sure if that was a tsd leftover.

[alexeagle]

LGTM after that fix

[mikekidder]

Closing as this looks to be covered in 0.6.1