Note that JCS is an emerging standard (again), it's not a full standa…

…rd quite yet.

Update publication snapshot.

Fix expected results in example 110.

Changed crEnd to 3rd of April

Fix reference to HTTP Link Header.

Minor tweaks to processing mode.

Update open issues.

Update ECHIDNA and travis configs for generating specs.

Publish from master branch, but trigger on publications. rawgit is at…

… end of life, we could use an alternate service, but for now we'll just stick with this.

Fix broken links.