auth_id in webapp2_extras.appengine.auth.models should not be converted to lower case

[GoogleCodeExporter]

What steps will reproduce the problem?
1. create user with auth_id "a1"
2. create user with auth_id "A1"

What is the expected output? 
- Two different users in db.

What do you see instead?
- First user is created, second is fail.

Please provide any additional information below.
— In our system we have different case-sensitive auth_ids but webapp2 convert 
them to lower case before creation.

Original issue reported on code.google.com by gmarke...@gmail.com on 14 Aug 2011 at 11:29

[GoogleCodeExporter]

Indeed, it should not do that. We will let the users decide if they want them 
to be case-insensitive. 

This was changed in Revision: 738fe08d014d

Original comment by rodrigo.moraes on 24 Aug 2011 at 9:58

• Changed state: Fixed