OMG a ridiculous commit to overhaul import handler config etc.

- add `MasterView.configurable` concept, `/configure.mako` template
- add new master view for DataSync Threads (needs content)
- tweak view config for DataSync Changes accordingly
- update the Configure DataSync page per `configurable` concept
- add new Configure Import/Export page, per `configurable`
- add basic views for Raw Permissions

tailbone/views/master.py

@@ -114,6 +114,7 @@ class MasterView(View):
     execute_progress_initial_msg = None
     supports_prev_next = False
     supports_import_batch_from_file = False
+    configurable = False
 
     # set to True to add "View *global* Objects" permission, and
     # expose / leverage the ``local_only`` object flag
@@ -2032,6 +2033,16 @@ class MasterView(View):
         """
         return getattr(cls, 'index_title', cls.get_model_title_plural())
 
+    @classmethod
+    def get_config_title(cls):
+        """
+        Returns the view's "config title".
+        """
+        if hasattr(cls, 'config_title'):
+            return cls.config_title
+
+        return cls.get_model_title_plural()
+
     def get_action_url(self, action, instance, **kwargs):
         """
         Generate a URL for the given action on the given instance
@@ -2075,6 +2086,7 @@ class MasterView(View):
             'permission_prefix': self.get_permission_prefix(),
             'index_title': self.get_index_title(),
             'index_url': self.get_index_url(),
+            'config_title': self.get_config_title(),
             'action_url': self.get_action_url,
             'grid_index': self.grid_index,
             'help_url': self.get_help_url(),
@@ -3982,7 +3994,46 @@ class MasterView(View):
         return diffs.Diff(old_data, new_data, **kwargs)
 
     ##############################
-    # Config Stuff
+    # Configuration Views
+    ##############################
+
+    def configure(self):
+        """
+        Generic view for configuring some aspect of the software.
+        """
+        if self.request.method == 'POST':
+            if self.request.POST.get('remove_settings'):
+                self.configure_remove_settings()
+                self.request.session.flash("Settings have been removed.")
+                return self.redirect(self.request.current_route_url())
+            else:
+                data = self.request.json_body
+                settings = self.configure_gather_settings(data)
+                self.configure_remove_settings()
+                self.configure_save_settings(settings)
+                self.request.session.flash("Settings have been saved.")
+                return self.json_response({'success': True})
+
+        context = self.configure_get_context()
+        return self.render_to_response('configure', context)
+
+    def configure_get_context(self):
+        return {}
+
+    def configure_gather_settings(self, data):
+        return []
+
+    def configure_remove_settings(self):
+        pass
+
+    def configure_save_settings(self, settings):
+        model = self.model
+        for setting in settings:
+            self.Session.add(model.Setting(name=setting['name'],
+                                           value=setting['value']))
+
+    ##############################
+    # Pyramid View Config
     ##############################
 
     @classmethod
@@ -4025,6 +4076,7 @@ class MasterView(View):
         model_key = cls.get_model_key()
         model_title = cls.get_model_title()
         model_title_plural = cls.get_model_title_plural()
+        config_title = cls.get_config_title()
         if cls.has_rows:
             row_model_title = cls.get_row_model_title()
 
@@ -4087,6 +4139,17 @@ class MasterView(View):
                 config.add_view(cls, attr='download_results_rows', route_name='{}.download_results_rows'.format(route_prefix),
                                 permission='{}.download_results_rows'.format(permission_prefix))
 
+        # configure
+        if cls.configurable:
+            config.add_tailbone_permission(permission_prefix,
+                                           '{}.configure'.format(permission_prefix),
+                                           label="Configure {}".format(config_title))
+            config.add_route('{}.configure'.format(route_prefix),
+                             '{}/configure'.format(url_prefix))
+            config.add_view(cls, attr='configure',
+                            route_name='{}.configure'.format(route_prefix),
+                            permission='{}.configure'.format(permission_prefix))
+
         # quickie (search)
         if cls.supports_quickie_search:
             config.add_tailbone_permission(permission_prefix, '{}.quickie'.format(permission_prefix),