cleaned up code for streamed images

src/visualize/image_like.jl

@@ -1,14 +1,14 @@
 GLAbstraction.gl_convert{T}(::Type{T}, img::Images.Image) = gl_convert(T, Images.data(img))
 
-function _default{T <: Colorant, X}(main::Images.Image{T, 2, X}, s::Style, d::Dict)
- props = main.properties
+function _default{T <: Colorant, X}(main::TOrSignal{Images.Image{T, 2, X}}, s::Style, d::Dict)
+ props = value(main).properties # TODO update this if signal
  if haskey(props, "spatialorder")
  so = props["spatialorder"]
  get!(d, :spatialorder, join(so, ""))
  end
- _default(Images.data(main), s, d)
+ _default(const_lift(Images.data, main), s, d)
 end
-_default{T <: Colorant, X}(main::Signal{Images.Image{T, 2, X}}, s::Style, d::Dict) = _default(const_lift(Images.data, main), s, d)
+
 
 """
 A matrix of colors is interpreted as an image