Major Hayden 1ed153273d Make long-running tasks use async
This patch makes two long-running Horizon tasks use async:

  - compressing static files
  - compiling messages for translation

Combined, these steps take anywhere from 60-120 seconds to complete,
depending on the CI environment.

Change-Id: Ibee0a0f5ebfe575d1e336c2e98322bc0a85a7af7
2017-02-21 10:50:39 -05:00
..
2017-02-21 10:50:39 -05:00