Merge branch 'release/1.2.0' into develop

* release/1.2.0:
  Adding changelog entries to reflect 1.2.0's new stuff.
  Bumping version number. (1.2.0)
ensure sp_http_status is not treated as a custom data attribute
Merge pull request #50 from senko/transient-sp-http-status

Transient sp http status
Merge branch 'master' into develop

* master:
Version bump!
Updating changelog.
Merge branch 'release/1.2.1'

* release/1.2.1:
  Updating changelog.
  Version bump!