Finished release 1.3.0 (merge into develop)
Bump version to 1.3.0
Hotfix RB upgrade issues

There was a trailing slash missing in one of the generated URLs, and
from now the trailing slash is required by RB.
hotfix 1.3.2: Fix HTTP error 404 on release finish
release stage: Add support for Circle CI
Finished feature 70005166/support-circle-ci.
bugfix: Variable name typo
release stage: Fix Circle CI support

Right now the client branch is being reset using --hard, which can lead to the
developer loosing some changes. So this patch changes the integration to use git
reset --soft instead, which should really only move the ref and nothing else.
Finished feature 70005166/support-circle-ci.
Bump version to 1.4.0
Merge branch 'release/1.4.0'

Conflicts:
	gitflow/__init__.py