Visual FSharp 4.0 Preview 02-24-2015

Requires VS 2015 CTP6 ********

http://www.visualstudio.com/en-us/news/vs2015-vs.aspx

This preview binaries are released for use under a proprietary license.

Source code is Licensed Apache 2.0

Contains all changes upto and including: 70ed65d0f389ea84c3adba372c3a441934ed8288