In case anyone needs it (Julia 0.5-dev). julia> using TerminalExtensions
julia> f = open("/Users/Randy/Pictures/116.png");
julia> d = read(f);
julia> Base.show(b::Base64EncodePipe, ::MIME"image/png", x) = write(b, x)
julia> display(TerminalExtensions.iTerm2.InlineDisplay(),
MIME("image/png"),d)
