Updating screenshots from submodule

tests/UI/expected-screenshots/SitesManager_search_page_1.png

tests/UI/expected-screenshots/Theme_demo.png

tests/UI/expected-screenshots/Theme_home.png

...cted-screenshots/Transitions_transitions_popup_titles.png

...pected-screenshots/Transitions_transitions_popup_urls.png

...eenshots/UIIntegrationTest_actions_content_name_piece.png

...d-screenshots/UIIntegrationTest_actions_content_piece.png

...eenshots/UIIntegrationTest_actions_content_piece_name.png

...pected-screenshots/UIIntegrationTest_actions_contents.png

...ected-screenshots/UIIntegrationTest_actions_downloads.png

...ted-screenshots/UIIntegrationTest_actions_entry_pages.png

...cted-screenshots/UIIntegrationTest_actions_exit_pages.png

...pected-screenshots/UIIntegrationTest_actions_outlinks.png

...ted-screenshots/UIIntegrationTest_actions_page_titles.png

.../expected-screenshots/UIIntegrationTest_actions_pages.png

...eenshots/UIIntegrationTest_actions_pages_tooltip_help.png

...ted-screenshots/UIIntegrationTest_actions_site_search.png

...nshots/UIIntegrationTest_admin_diagnostics_configfile.png

...eenshots/UIIntegrationTest_admin_manage_tracking_code.png

...cted-screenshots/UIIntegrationTest_admin_manage_users.png