Bump version: 1.8.0 → 1.9.0

Bump version: 1.7.0 → 1.8.0

Bump version: 1.6.11 → 1.7.0

Merge pull request bernardopires#421 from AlexvEck/default-tenant-fix

Closes bernardopires#383.

Thank you to @UnrealAkama for the original contribution and @AlexvEck for adding the initial tests.

Third attempt at travis and pypi

Testing travis auto commit to pypi

A bunch of fixes

Update apps.py

Populate `app_configs` if it is `None`.

Update .travis.yml to trigger deploy on tags

Wrapped the encrypted password to fit on narrow displays, including
github.com

Fixes bernardopires#411