Add start time and subtitle to guide view.
Remove some debug code.
Merge branch 'feature/various_changes' into develop
Add config check and add more attributes to config items. If a required config item is not set a config item status page will be displayed instead the requested page.
Add link to settings to menu. This leads to config check page. Add new operation 'o_manage_settings' in acl list.
Fix visibble condition for admin menu.
Merge branch 'feature/config_check' into develop