Fix a typo in the Bitbucket team name help text.

We had an embarrassing typo where we said "hte" instead of "the".
Fix error handling in review-request publish

Fix the error-callback arguments when publishing a review request.

Testing Done:
Modified web API to return an error and verified that the errorText was
displayed in the alert box upon publishing a review request. Double-checked
with BackBone docs.

Reviewed at https://reviews.reviewboard.org/r/5719/
Fix documentation for rb-site --db-name with sqlite3.

The --db-name parameter isn't "not used for sqlite3", but is rather the path to
the database file. Trivial fix.

Fixes bug 3304.
Merge branch 'release-1.7.x' into release-2.0.x
Active Directory auth: try other domain-controllers even when STARTTLS fails

When STARTTLS fails for a domain controller don't bail out: instead keep trying
the other domain controllers. E.g. it could fail for the same reason that
unencrypted binds could fail: server unavailability.

This change ensures that unavailable servers as well as servers with
unrecognized certificates are skipped while still logging a decent message for
server admins to find out what's going on.

Testing Done:
Tested this on my company's review board server. Without it I get a failure
every few login-attempts when one of our domain controllers is down (I've got
TLS enabled for active directory authentication). With this patch it only logs
a warning and goes on with the next server.

The fact that it only fails every once in a while is probably related due to
SRV order-randomisation within the same priority level (all of our domain
controllers get assigned the same priority).

Reviewed at https://reviews.reviewboard.org/r/5701/
Merge branch 'release-1.7.x' into release-2.0.x
Sandboxed ReviewRequestApprovalHook and added test cases

Added Sandbox Extension and test hook.

Testing Done:
* Unit testing, added to test suites in reviewboard/extensions/tests.py
* Ran unit tests with and without the sandboxing

Reviewed at https://reviews.reviewboard.org/r/5677/
Add draft 2.0 release notes.

This has everything from the 2.0 beta 1, beta 2, beta 3, RC 1, and RC 2
releases, plus the changes that have gone in since RC 2, minus the changes and
bugfixes that have been backported to 1.7.x, and minus any fixes from later
prereleases for features introduced in earlier prereleases.

Testing done:
* Built HTML and read through it.
* Did some fancy-pants grepping to check for backported bugs.

Reviewed at https://reviews.reviewboard.org/r/5717/
Sandboxing NavigationBarHook get_entries

Added unit tests to test sandboxing

Testing Done:
* Unit testing, added to test suites in reviewboard/extensions/tests.py
* Unit testing with and without the sandboxing

Reviewed at https://reviews.reviewboard.org/r/5708/
Add publishing signals.

Return descriptive review-request-publish web API errors.