WSIF provider for Spring

Today I did something worthwhile for the OSS community -- if I get around to releasing it, that is: I wrote a WSIF provider for the Spring Framework. It was pretty trivial actually, as I reused quite a lot of the code from the existing Java binding.

Speaking of WSIF, I still fail to understand why it hasn't taken off in a big way; I can't think of a more performant and flexible way to do an SOA in a Java world.