LP:618608 - FederatedX is not the default on Windows

Kristian Nielsen writes:

I noticed some test failures in Federated in our Windows Build, which made me realise that we are building Federated[X] incorrectly:

http://buildbot.askmonty.org/buildbot/builders/kvm-zip-winxp-x86/builds/104/steps/compile/logs/stdio

build FEDERATED as static library
build FEDERATEDX as DLL

I believe this means that Federated, not FederatedX, will be used, which is opposite from what all the other platforms are doing, and hence seems wrong. You can probably get Serg to help with how things should be to be correct.