Fix failing condition for firefox 42.

Disable Courseware JS from loading on Student Dashboard.

SOL-1182 / Bokchoy-test

Firefox 42 is faster than the version we're currently using for platform tests. This failure
occurs in the brief amount of time where the teams page is reloading. Waiting for the actual
team list to appear before moving on with tests solves the issue. Approx 4 testcases are fixed.

Below is an example of error that was appearing in firefox 42 tests:

```
Error Message

Not on the correct page to use '<common.test.acceptance.pages.studio.users.CourseTeamPage object at 0x7feb9fdb0490>' at URL 'http://localhost:8031/course_team/course-v1:test_org+321550032104190792981383915127220335686+test_run'
-------------------- >> begin captured logging << --------------------
bok_choy.browser: INFO: Using local browser: firefox [Default is firefox]
--------------------- >> end captured logging << ---------------------
Stacktrace

  File "/usr/lib/python2.7/unittest/case.py", line 331, in run
    testMethod()
  File "/home/jenkins/workspace/edx-platform-test-subset/common/test/acceptance/tests/studio/test_studio_course_team.py", line 147, in test_added_users_cannot_add_or_delete_other_users
    self._assert_user_present(self.other_user, present=True)
  File "/home/jenkins/workspace/edx-platform-test-subset/common/test/acceptance/tests/studio/test_studio_course_team.py", line 78, in _assert_user_present
    description="Wait for user to be present"
  File "/home/jenkins/edx-venv/local/lib/python2.7/site-packages/bok_choy/page_object.py", line 490, in wait_for
    return EmptyPromise(promise_check_func, description, timeout=timeout).fulfill()
  File "/home/jenkins/edx-venv/local/lib/python2.7/site-packages/bok_choy/promise.py", line 92, in fulfill
    is_fulfilled, result = self._check_fulfilled()
  File "/home/jenkins/edx-venv/local/lib/python2.7/site-packages/bok_choy/promise.py", line 118, in _check_fulfilled
    is_fulfilled, result = self._check_func()
  File "/home/jenkins/edx-venv/local/lib/python2.7/site-packages/bok_choy/promise.py", line 173, in <lambda>
    full_check_func = lambda: (check_func(), None)
  File "/home/jenkins/workspace/edx-platform-test-subset/common/test/acceptance/tests/studio/test_studio_course_team.py", line 77, in <lambda>
    lambda: user.get('username') in self.page.usernames,
  File "/home/jenkins/edx-venv/local/lib/python2.7/site-packages/bok_choy/page_object.py", line 66, in wrapper
    self._verify_page()  # pylint: disable=protected-access
  File "/home/jenkins/edx-venv/local/lib/python2.7/site-packages/bok_choy/page_object.py", line 331, in _verify_page
    raise WrongPageError(msg)
"Not on the correct page to use '<common.test.acceptance.pages.studio.users.CourseTeamPage object at 0x7feb9fdb0490>' at URL 'http://localhost:8031/course_team/course-v1:test_org+321550032104190792981383915127220335686+test_run'\n-------------------- >> begin captured logging << --------------------\nbok_choy.browser: INFO: Using local browser: firefox [Default is firefox]\n--------------------- >> end captured logging << ---------------------"
```

Using edx-search from PyPI

Course Blocks API support for all blocks when no username

Add custom fields to registration menu.

[PERF-224] Serve course assets from a CDN

Resolving errors for selenium upgrade.

PHX-207 Upgrade xblock-lti-consumer to include accessibility improvements

A base URL can now be configured which is, potentially, prepended to an
asset URL.  This allows a CDN, or caching server, to front static asset
requests, taking load off of the contentstore and speeding up page load
times.

Asset URL generation respects locked vs unlocked assets, and will not
generate links to locked assets that would traverse a CDN (even though
the authorization component of the contentserver middleware wouldn't
allow those links to work anyways).

remove aria-hidden from staff lms controls

Fix Instructor tool "View as Specific Student" doesn't work on the course updates page.

-Added test for TNL-3556.

Fixed test can create note with tags failing on Chrome

Fixed test quality button visibility failing on Chrome

Fix cohort doc help targets in Instructor Dashboard

Remove duplicate import

Fixed test url routing failing on Chrome

Mailchimp activation

Allow searching enrollments by email as well as username.

Update translations (autogenerated message)

DEVOPS-3388 Remove unused setting from edxapp configuration

SOL-1529: Allow PMs to Invalidate Certificates

ziafazal/SOL-1560:load db_fixures when run with --testsonly

Shr/bug/tnl 2622 course import status message fix test

Shr/bug/tnl-3809-sign-in-mutiple-clicks

These action chains are invalid for later versions of selenium (which
are needed for upgrading the version of firefox we test on); they will
result in output like this:

```
 WebDriverException: Message: UnknownError: Cannot release a button when no button is pressed.'UnknownError: Cannot release a button when no button is pressed.' when calling method: [wdIMouse::up]
   Stacktrace:
       at FirefoxDriver.prototype.mouseButtonUp (file:///tmp/tmp6LL1Ye/extensions/fxdriver@googlecode.com/components/driver-component.js:10979)
       at DelayedCommand.prototype.executeInternal_/h (file:///tmp/tmp6LL1Ye/extensions/fxdriver@googlecode.com/components/command-processor.js:12534)
       at DelayedCommand.prototype.executeInternal_ (file:///tmp/tmp6LL1Ye/extensions/fxdriver@googlecode.com/components/command-processor.js:12539)
       at DelayedCommand.prototype.execute/< (file:///tmp/tmp6LL1Ye/extensions/fxdriver@googlecode.com/components/command-processor.js:12481)

```