accept alternate user urls (temporarily) while indieauth transitions to new normalization

requirements.txt

@@ -1,7 +1,7 @@
 Flask==0.10.1
 Flask-DebugToolbar==0.10.0
 Flask-Login==0.2.11
-Flask-Micropub==0.2.1
+Flask-Micropub==0.2.2
 Flask-Migrate==1.3.1
 Flask-SQLAlchemy==2.0
 Flask-Script==2.0.5

woodwind/views.py

@@ -279,7 +279,9 @@ def deauthorize():
 
 @login_mgr.user_loader
 def load_user(url):
-    return User.query.filter_by(url=url).first()
+    alt = url.rstrip('/') if url.endswith('/') else url + '/'
+    return User.query.filter(
+        (User.url == url) | (User.url == alt)).first()
 
 
 @views.route('/subscribe', methods=['GET', 'POST'])