show which address is user subscribed from in the summary page

user have a choice to select address while subscribing to a list

remove the contact address on domain list page to fix the error for meanwhile

Merging Bhavesh Goyal's fix for Bug #1431474 (with one change to the mass subscribe access)

Merging Pavan Koli's fix for Bug #1436309

require django<1.8 since 1.8 doesn't play well with django-browserid (yet!)

removed old unused view module

django_browserid init: use included JS script instead of making the method call in the page.

removed django_nose ...

added django1.8 test env to tox.ini

Typos fixed

Fixed Bug #1431474 postorius user nav role fix

Fix manage.py mmclient command for non-IPython shells. Contributed by Ankush Sharma (LP: 1428169).

Mozilla Persona integration: switch from django-social-auto to django-browserid: Contributed by Abhilash Raj.

replace django-social-auth with django-browserid

Fixed the issue #1428169.

Added missing MANIFEST.in items (Given by Aurélien Bompard).

And also include text-based templates

Also include VCR records

Also include tox.ini and dev-requirements.txt

Include the testing directory in the sdist tarball

removed unnecessary installation instruction from dev docs

* added tox to dev dependencies ...

* removed duplicate dependency file
* dev docs text change

small text change in dev docs

dev docs: note added

* Reworked internal testing ...

* Documentation update

renamed tox env `rerecord` => `record`

typo in development docs

* add testing documentation ...

* add a sample mailman.cfg for testing

add env for fixture re-recording to tox.ini

reduced number of vcr cassette files used in current tests