login name for user must restrict characters

[GoogleCodeExporter]

currently the login name for a user allows characters like ',:," etc .. 

the login name field must be restricted to alpha-numeric characters and the 
only character allowed is a dot (.) which must not appear as the first or last 
character.

Original issue reported on code.google.com by ashok.ha...@gmail.com on 28 Jun 2011 at 1:59

[GoogleCodeExporter]

Initial fix in r8384.

Login is:
- combination of characters (a-zA-Z), numbers, underscore and period
- start with letter
- limited to a length of between 3 to 20 characters

Suggestions welcome on any improvement.

Original comment by borona.m...@gmail.com on 29 Jun 2011 at 11:19

[GoogleCodeExporter]

Original comment by ashok.ha...@gmail.com on 3 Jul 2011 at 8:29

• Changed state: TestingFix

[GoogleCodeExporter]

Original comment by ashok.ha...@gmail.com on 28 Sep 2011 at 8:00

• Changed state: Closed