travis: mono 3.4.0 build
travis: mono 3.4.0 build

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