add axes function for surfaces

src/components.jl

@@ -661,7 +661,7 @@ Surface(f::Function, x, y) = Surface(Float64[f(xi,yi) for yi in y, xi in x])
 
 Base.Array(surf::Surface) = surf.surf
 
-for f in (:length, :size)
+for f in (:length, :size, :axes)
     @eval Base.$f(surf::Surface, args...) = $f(surf.surf, args...)
 end
 Base.copy(surf::Surface) = Surface(copy(surf.surf))

src/series.jl

@@ -344,7 +344,7 @@ end
 
 @recipe f(n::Integer) = is3d(get(plotattributes,:seriestype,:path)) ? (SliceIt, n, n, n) : (SliceIt, n, n, nothing)
 
-all3D(plotattributes) = all(
+all3D(plotattributes) = trueOrAllTrue(
     st -> st in (
         :contour,
         :contourf,