Merge branch 'stable-3.2'

* stable-3.2:
  Exclude special refs from fetch calls
  Parallelise REST API fetch calls

Change-Id: I5e57945e7c4e793c9d1e2cc891c023093d8b3dac
tree: fdef3f00fc5198ee701d729f1b12cb532be85221
  1. BUILD
  2. Jenkinsfile
  3. LICENSE
  4. src/