Add missing wasm symlinks to release 0.6.12

[cameel]

Fixes #45.

[chriseth]

travis job failed because of missing newline...

[cameel]

What? In a symlink? WTF.

[cameel]

Wait, it's probably just that the diff after update is not clean. I'll rerun it locally and see what might be the cause.

[cameel]

Looks like the update script did not update the latest symlink in wasm/ on my machine. Not sure why - I ran the clean version from gh-pages which should have done it. Anyway, rerunning locally to fix it.

[cameel]

Fixed.

I think I know what's going on. It did not wait for wasm/ to be processed (which includes creating symlinks to the new release in emscripten-wasm32/) before it started processing emscripten-wasm32/. It did not see the new symlink and therefore did not update the lists. That's despite doing the second update in a callback which I added specifically to prevent this.

This is the same issue I've just been fighting with after modifying the update script. This means that my changes are fine and the issue is actually already there, just not always reproducible. I'll debug it tomorrow - for now, just rerunning it should be enough to fix this PR.

[cameel]

I just pushed #49 which automates creation of these symlinks.