Add Spring-based configuration to toggle LDP strict handling of PUT requests

without an If-Match header

https://www.pivotaltracker.com/story/show/80950760

I'm sure this isn't the best way to do it, but we need some get some configuration from somewhere..
For some reason the error message does not make its way to the response. My response is:
> < HTTP/1.1 100 Continue
> < HTTP/1.1 428 428
> < Content-Length: 0
>  Server Jetty(8.1.11.v20130520) is not blacklisted
> < Server: Jetty(8.1.11.v20130520)
>  HTTP error before end of send, stop sending

Anyways, the functional appears to work.