upgrade to new pretix, remove download, add page links

pretix_digital_items/apps.py

@@ -0,0 +1,27 @@
+from django.utils.translation import gettext_lazy
+from . import __version__
+
+try:
+    from pretix.base.plugins import PluginConfig
+except ImportError:
+    raise RuntimeError("Please use pretix 2.7 or above to run this plugin!")
+
+
+class PluginApp(PluginConfig):
+    default = True
+    name = "pretix_digital_items"
+    verbose_name = "Digital Items"
+
+    class PretixPluginMeta:
+        name = gettext_lazy("Digital Items")
+        author = "_Bastler"
+        description = gettext_lazy("Sell digital Items by using secrets as tokens. Adds secrets to email placeholders, output secret as simple TXT file.")
+        visible = True
+        version = __version__
+        category = "FEATURE"
+        compatibility = "pretix>=2.7.0"
+
+    def ready(self):
+        from . import signals  # NOQA
+
+