Dashboard tests fail because horizon apache root was moved to /dashboard

[Anastasia Kuznetsova]

Because of this commit https://review.openstack.org/#/c/206263/6 murano selenium tests started fail, cause they use incorrect horizon_url

======================================================================
ERROR: sanity_check.TestSuiteApplications.test_check_ability_create_two_dependent_apps
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_StringException: Traceback (most recent call last):
  File "/opt/stack/murano-dashboard/muranodashboard/tests/functional/base.py", line 75, in setUp
    self.log_in()
  File "/opt/stack/murano-dashboard/muranodashboard/tests/functional/base.py", line 116, in log_in
    self.fill_field(by.By.ID, 'id_username', cfg.common.user)
  File "/opt/stack/murano-dashboard/muranodashboard/tests/functional/base.py", line 124, in fill_field
    self.driver.find_element(by=by_find, value=field).clear()
  File "/usr/local/lib/python2.7/dist-packages/selenium/webdriver/remote/webdriver.py", line 707, in find_element
    {'using': by, 'value': value})['value']
  File "/usr/local/lib/python2.7/dist-packages/selenium/webdriver/remote/webdriver.py", line 196, in execute
    self.error_handler.check_response(response)
  File "/usr/local/lib/python2.7/dist-packages/selenium/webdriver/remote/errorhandler.py", line 181, in check_response
    raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.NoSuchElementException: Message: Unable to locate element: {"method":"id","selector":"id_username"}
Stacktrace:
    at FirefoxDriver.prototype.findElementInternal_ (file:///<email address hidden>/components/driver-component.js:10667)
    at fxdriver.Timer.prototype.setTimeout/<.notify (file:///<email address hidden>/components/driver-component.js:623)

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/215589

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/215589
Committed: https://git.openstack.org/cgit/openstack/murano-deployment/commit/?id=ae2e5837899685124db1f2f26675410cb5b41303
Submitter: Jenkins
Branch: master

commit ae2e5837899685124db1f2f26675410cb5b41303
Author: Alexey Deryugin <email address hidden>
Date: Fri Aug 21 14:46:05 2015 +0300

    Fix horizon_url used in tests

    According to https://review.openstack.org/#/c/206263/ horizon root
    was changed from "/" to "/dashboard/"

    Change-Id: I190df7bae328d84e6de9cdf32ae30a8e58f0e3d0
    Closes-Bug: #1487434