views.py: …
- add guardian decorator permission_required to edit_visit_type, require modify_proejct_data

edit_visit_type.html,
view_project_visit_types.html:
- update form url for editing visit_type to include project_id arg

urls.py:
- make url scheme consistent for edit_visit_type
models.py:
- add Site method get_user_permissions

templatetags:
- refactor get_user_permissions -> get_user_project_permisssions
- add new function get_user_site_permissions

view_projects.html:
- add user site permissions to home page