Merge branch 'release/1.3.1' into develop

* release/1.3.1:
  Update changelog
  Bump version to 1.3.1
Change snapshot prefix, and reduce some repitition
Add a note to the README about snapshot prefixes
Bump version to 1.3.2
Update changelog
Merge branch 'release/1.3.2'

* release/1.3.2:
  Update changelog
  Bump version to 1.3.2
  Add a note to the README about snapshot prefixes
  Change snapshot prefix, and reduce some repitition