users: allow norm-equivalent names in profile url

app/routes/users.py

@@ -1,12 +1,14 @@
 from flask import redirect, url_for
 from app import app
 from app.models.users import Member
+from app.utils import unicode_names
 from app.utils.render import render
 
 
 @app.route('/user/<username>')
 def user(username):
-    member = Member.query.filter_by(name=username).first_or_404()
+    norm = unicode_names.normalize(username)
+    member = Member.query.filter_by(norm=norm).first_or_404()
     return render('user.html', member=member)