allow for usernames with dots

preparing for #5664 with some test improvements i ran into this issue

This commit includes a fix and the test improvements. In particular it
adds BrowserIntegrationTest#login - so there is no need to go through the signup procedure everytime you want a user to be logged in.

1 files changed, 4 insertions, 0 deletions

diff --git a/app/models/token.rb b/app/models/token.rb
index 4856c31..e759ee3 100644
--- a/app/models/token.rb
+++ b/app/models/token.rb
@@ -30,6 +30,10 @@ class Token < CouchRest::Model::Base
     end
   end
 
+  def to_s
+    id
+  end
+
   def authenticate
     if expired?
       destroy