Apache 2.4

Hi,

I fixed the module to support the new authentication structure. I tested it on Apache 2.4.6 and 'require valid-user' and 'require user ....' work. 

As I only need Google OpenID not everything is tested but only the following configuration

    AuthType    OpenID
    AuthOpenIDLoginPage /index.html
    AuthOpenIDSingleIdP https://www.google.com/accounts/o8/id
    AuthOpenIDAXRequire email http://axschema.org/contact/email .*
    AuthOpenIDAXUsername email
    require valid-user

And:  
  
    require user myuseraccount@gmail.com

This code is compatible with apache 2.2.15, it compiles and it tested in a similar manner as 2.4.6 support

Enjoy it ;)