Code review comment for lp:~frankban/juju-quickstart/minor-fixes-0

Reviewers: mp+203942_code.launchpad.net,

Message:
Please take a look.

Description:
Minor fixes to code comments and documentation

Also fixed a possible encoding problem in error handling.

The get_admin_secret function and its test case are just moved, no
need to re-review.

Tests: `make check`.
No QA.

https://code.launchpad.net/~frankban/juju-quickstart/minor-fixes-0/+merge/203942

(do not edit description out of merge proposal)

Please review this at https://codereview.appspot.com/58680043/

Affected files (+58, -48 lines):
   M HACKING.rst
   A [revision details]
   M quickstart/app.py
   M quickstart/manage.py
   M quickstart/tests/test_app.py
   M quickstart/tests/test_manage.py