Also remove an unnecessary space in the previous table abbreviation.

At the moment the spec requires a `LinkError` to be thrown when the `WebAssembly.Global` constructor is called for type `v128`. This was introduced in https://github.com/WebAssembly/simd/pull/360, but according to the PR description, actually a `TypeError` should be thrown. The PR refers to https://github.com/WebAssembly/simd/blob/master/proposals/simd/SIMD.md#javascript-api-and-simd-values, and there a `TypeError` is required.

At yesterday's WG meeting, we decided to make a new release, now switching to the Evergreen model. For administrative and technical reasons having to do with W3C procedure, we decided to bump the release number to 2.

From now on, the standard will iterate at version 2 from the W3C's official perspective. We use minor release numbers internally to distinguish different iterations.

(@ericprud, I hope I understood correctly that the Bikeshed "level" also needed to be bumped to 2.)

Fixed #1435.

This will return early right after generating JS from the wast test
files. It will not attempt to run the tests, or do the round trip
conversion from wasm <-> wast.

This is convenient for proposals to add tests without having to
update the reference interpreter with implementation, and generate those
tests to JS to run in other Wasm engines.

Fixes #1430.