upgrade to new pretix, remove download, add page links

setup.cfg

@@ -9,6 +9,36 @@ default_section = THIRDPARTY
 include_trailing_comma = true
 known_third_party = pretix
 known_standard_library = typing
-multi_line_output = 5
-not_skip = __init__.py
+multi_line_output = 3
 skip = setup.py
+use_parentheses = True
+force_grid_wrap = 0
+line_length = 88
+known_first_party = pretix_digital_items
+
+[tool:pytest]
+DJANGO_SETTINGS_MODULE = pretix.testutils.settings
+
+[coverage:run]
+source = pretix_digital_items
+omit = */migrations/*,*/urls.py,*/tests/*
+
+[coverage:report]
+exclude_lines =
+    pragma: no cover
+    def __str__
+    der __repr__
+    if settings.DEBUG
+    NOQA
+    NotImplementedError
+
+[check-manifest]
+ignore =
+    .update-locales.sh
+    .install-hooks.sh
+    pretixplugin.toml
+    Makefile
+    manage.py
+    tests/*
+	*.po
+	.gitkeep