This fixes a problem where any absolute redirects in the routes
visited by the Casper tests will cause failures due to switching the
users to a "different" server where the cookies they'd received are no
longer valid.
Now, we at least consistently use the same hostname in the Casper
tests as EXTERNAL_HOST.
These changes prepare us for the casperjs upgrade:
Extract init_viewport().
Have then_log_out() do more explicit waiting.
Add turn_off_press_enter_to_send().
This adds support for running a Zulip production server with each
realm on its own unique subdomain, e.g. https://realm_name.example.com.
This patch includes a ton of important features:
* Configuring the Zulip sesion middleware to issue cookier correctly
for the subdomains case.
* Throwing an error if the user tries to visit an invalid subdomain.
* Runs a portion of the Casper tests with REALMS_HAVE_SUBDOMAINS
enabled to test the subdomain signup process.
* Updating our integrations documentation to refer to the current subdomain.
* Enforces that users can only login to the subdomain of their realm
(but does not restrict the API; that will be tightened in a future commit).
Note that toggling settings.REALMS_HAVE_SUBDOMAINS on a live server is
not supported without manual intervention (the main problem will be
adding "subdomain" values for all the existing realms).
[substantially modified by tabbott as part of merging]
Tim Abbott
Steve Howell
Umair Khan
hackerkid
Tim Abbott
Taranjeet Singh
Rishi Gupta
Caroline Liu
Allie Jones