add policy assignment mixin, unit test, updated checkbox tree to support flat list
Change Service to Services in the submenus property
Adding locators and methods for namespace cleanup
Merge pull request #92 from bcrochet/fix_services

Change Service to Services in the submenus property
removed heavily dependent unittest and made save-reset-cancel methods (were properties)
Merge pull request #91 from rlandy/provisioning_pgs

Adding locators and methods for provisioning test
Merge pull request #94 from rlandy/automate_pgs

Adding locators and methods for namespace cleanup
removed unnecessary return statements from save-cancel-reset methods
Merge pull request #85 from aweiteka/policy_mixin

add policy assignment mixin
Adding _wait_for_visible_element before clicking the submit button