Refactor autocomplete view logic to leverage new "autocompleters"

finally!  this cleans up some view config and AFAIK there is no loss
in functionality etc.

tests/views/test_autocomplete.py

@@ -1,86 +0,0 @@
-
-from mock import Mock
-from pyramid import testing
-import sqlalchemy as sa
-
-from .. import TestCase, mock_query
-from tailbone.views import autocomplete
-
-
-class BareAutocompleteViewTests(TestCase):
-
-    def view(self, **kwargs):
-        request = testing.DummyRequest(**kwargs)
-        return autocomplete.AutocompleteView(request)
-
-    def test_attributes(self):
-        view = self.view()
-        self.assertRaises(AttributeError, getattr, view, 'mapped_class')
-        self.assertRaises(AttributeError, getattr, view, 'fieldname')
-
-    def test_filter_query(self):
-        view = self.view()
-        query = Mock()
-        filtered = view.filter_query(query)
-        self.assertTrue(filtered is query)
-
-    def test_make_query(self):
-        view = self.view()
-        # No mapped_class defined for view.
-        self.assertRaises(AttributeError, view.make_query, 'test')
-
-    def test_query(self):
-        view = self.view()
-        query = Mock()
-        view.make_query = Mock(return_value=query)
-        filtered = view.query('test')
-        self.assertTrue(filtered is query)
-
-    def test_display(self):
-        view = self.view()
-        instance = Mock()
-        # No fieldname defined for view.
-        self.assertRaises(AttributeError, view.display, instance)
-
-    def test_call(self):
-        # Empty or missing query term yields empty list.
-        view = self.view(params={})
-        self.assertEqual(view(), [])
-        view = self.view(params={'term': None})
-        self.assertEqual(view(), [])
-        view = self.view(params={'term': ''})
-        self.assertEqual(view(), [])
-        view = self.view(params={'term': '\t'})
-        self.assertEqual(view(), [])
-        # No mapped_class defined for view.
-        view = self.view(params={'term': 'bogus'})
-        self.assertRaises(AttributeError, view)
-
-
-class SampleAutocompleteViewTests(TestCase):
-
-    def setUp(self):
-        super(SampleAutocompleteViewTests, self).setUp()
-        self.Session_query = autocomplete.Session.query
-        self.query = mock_query()
-        autocomplete.Session.query = self.query
-
-    def tearDown(self):
-        super(SampleAutocompleteViewTests, self).tearDown()
-        autocomplete.Session.query = self.Session_query
-
-    def view(self, **kwargs):
-        request = testing.DummyRequest(**kwargs)
-        view = autocomplete.AutocompleteView(request)
-        view.mapped_class = Mock()
-        view.fieldname = 'thing'
-        return view
-
-    def test_make_query(self):
-        view = self.view()
-        whatever = sa.text('whatever')
-        view.mapped_class.thing.ilike.return_value = whatever
-        self.assertTrue(view.make_query('test') is self.query)
-        view.mapped_class.thing.ilike.assert_called_with('%test%')
-        self.query.filter.assert_called_with(whatever)
-        self.query.order_by.assert_called_with(view.mapped_class.thing)