Environment to include REQUEST_METHOD - feature request

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Normal install and setup can work but the provided environment does not 
include REQUEST_METHOD?
2.
3.

What is the expected output? What do you see instead?
ENV{'REQUEST_METHOD'} is null

What version of the product are you using? On what operating system?
3.2.4

Please provide any additional information below.
This is more of a feature request than an issue.  It will be very useful to 
also know the request_method used such as "GET" "POST" "PUT" - mostly valuable 
if you are using authnz_external on a DAV folder so you can decide 
read-only/read-write permissions by understanding the request_method.

The code would just need a patch to add request_method to the environment.  
Happy to contribute the patch if you would like for me to!

Vijay 

Original issue reported on code.google.com by [email protected] on 28 Aug 2014 at 1:20