v0.35.0

There was a little delay in cutting this release as the laptop high
performance build cluster we use to build the Packer boxes was
decomissioned as we switched over to new hardware.

• Workers can now advertise the platform that they support as well as
  additional tags that can influence the placement of builds.

  Today’s build configs will have to start specifying an explicit
  platform. See [missing] for more information. The main takeaway is
  that you’ll need to add platform: linux to all of your
  build.ymls.

  For more information on configuring additional workers, see [missing].

• The scheduler semantics have been simplified which has the main effect
  of making sure that disabled resources are not used in manually
  triggered builds.

• You can now download a compatible fly from ATC. Look for the links
  in the bottom right of the main page. The new fly sync command can
  be used to synchronise the version of fly with the targetted ATC.

• The UI has been spruced up with some little icons. Let us know what
  you think.

• We’ve upgraded Go to version 1.4.2 inside the release. You shouldn’t
  notice any difference with Concourse but this should give you a warm
  fuzzy feeling inside.