update build.fsx
update build.fsx

nessos/FsPickler,cloudRoutine/Unity3d.FsPickler,cloudRoutine/Unity3d.FsPickler,nessos/FsPickler,wallymathieu/FsPickler,haraldsteinlechner/FsPickler,FsUnity/Unity3d.FsPickler,mbraceproject/FsPickler,haraldsteinlechner/FsPickler,wallymathieu/FsPickler,FsUnity/Unity3d.FsPickler