feat: refactor forms/grids/views/templates per wuttaweb compat

this starts to get things more aligned between wuttaweb and tailbone.
the use case in mind so far is for a wuttaweb view to be included in a
tailbone app.

form and grid classes now have some new methods to match wuttaweb, so
templates call the shared method names where possible.

templates can no longer assume they have tailbone-native master view,
form, grid etc. so must inspect context more closely in some cases.

tests/util.py

@@ -0,0 +1,75 @@
+# -*- coding: utf-8; -*-
+
+from unittest.mock import MagicMock
+
+from pyramid import testing
+
+from tailbone import subscribers
+from wuttaweb.menus import MenuHandler
+# from wuttaweb.subscribers import new_request_set_user
+from rattail.testing import DataTestCase
+
+
+class WebTestCase(DataTestCase):
+    """
+    Base class for test suites requiring a full (typical) web app.
+    """
+
+    def setUp(self):
+        self.setup_web()
+
+    def setup_web(self):
+        self.setup_db()
+        self.request = self.make_request()
+        self.pyramid_config = testing.setUp(request=self.request, settings={
+            'wutta_config': self.config,
+            'rattail_config': self.config,
+            'mako.directories': ['tailbone:templates'],
+            # 'pyramid_deform.template_search_path': 'wuttaweb:templates/deform',
+        })
+
+        # init web
+        # self.pyramid_config.include('pyramid_deform')
+        self.pyramid_config.include('pyramid_mako')
+        self.pyramid_config.add_directive('add_wutta_permission_group',
+                                          'wuttaweb.auth.add_permission_group')
+        self.pyramid_config.add_directive('add_wutta_permission',
+                                          'wuttaweb.auth.add_permission')
+        self.pyramid_config.add_directive('add_tailbone_permission_group',
+                                          'wuttaweb.auth.add_permission_group')
+        self.pyramid_config.add_directive('add_tailbone_permission',
+                                          'wuttaweb.auth.add_permission')
+        self.pyramid_config.add_directive('add_tailbone_index_page',
+                                          'tailbone.app.add_index_page')
+        self.pyramid_config.add_directive('add_tailbone_model_view',
+                                          'tailbone.app.add_model_view')
+        self.pyramid_config.add_subscriber('tailbone.subscribers.before_render',
+                                           'pyramid.events.BeforeRender')
+        self.pyramid_config.include('tailbone.static')
+
+        # setup new request w/ anonymous user
+        event = MagicMock(request=self.request)
+        subscribers.new_request(event, session=self.session)
+        # def user_getter(request, **kwargs): pass
+        # new_request_set_user(event, db_session=self.session,
+        #                      user_getter=user_getter)
+
+    def tearDown(self):
+        self.teardown_web()
+
+    def teardown_web(self):
+        testing.tearDown()
+        self.teardown_db()
+
+    def make_request(self, **kwargs):
+        kwargs.setdefault('rattail_config', self.config)
+        # kwargs.setdefault('wutta_config', self.config)
+        return testing.DummyRequest(**kwargs)
+
+
+class NullMenuHandler(MenuHandler):
+    """
+    Dummy menu handler for testing.
+    """
+    def make_menus(self, request, **kwargs):
+        return []