[zanata/zanata-server] fa8d50: Fix kerberos from-based authentication.

[GitHub]

  Branch: refs/heads/kerberos-form-fallback
  Home:   https://github.com/zanata/zanata-server
  Commit: fa8d5013bf278ee7fdff2a9ecef2b8adee9f3538
      https://github.com/zanata/zanata-server/commit/fa8d5013bf278ee7fdff2a9ecef2b8adee9f3538
  Author: Carlos A. Munoz <camunoz at redhat.com>
  Date:   2013-11-11 (Mon, 11 Nov 2013)

  Changed paths:
    R zanata-war/src/main/java/org/zanata/servlet/KerberosLoginFormServlet.java
    M zanata-war/src/main/webapp-jboss/WEB-INF/web.xml
    A zanata-war/src/main/webapp/account/kloginform.jsp

  Log Message:
  -----------
  Fix kerberos from-based authentication.

Using a servlet to generate the login form was causing the NegotiationAuthenticator valve to return the wrong response code, halting the SPNego process and preventing ticket based authentication (if available) from taking effect.