Merge pull request #586 from patthoyts/pt/ldap-auth-fix

Ensure LDAP provided email is always compared case-insensitively.

app/models/user.rb

@@ -80,7 +80,7 @@ class User < ActiveRecord::Base
 
   def self.find_for_ldap_auth(omniauth_info)
     name = omniauth_info.name
-    email = omniauth_info.email
+    email = omniauth_info.email.downcase
     
     if @user = User.find_by_email(email)
       @user