mustimplement (on reset_transform) goes wrong

[lobingera]

this started out in JuliaImages/ImageView.jl#139 but at a closer look, the assertion by mustimplement goes something wrong, here https://github.com/JuliaGraphics/Graphics.jl/blob/master/src/Graphics.jl#L391, because:

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julia> using Cairo

julia> reset_transform
reset_transform (generic function with 1 method)

julia> methods(reset_transform)
# 1 method for generic function "reset_transform":
reset_transform(ctx::Cairo.CairoContext) in Cairo at /home/lobi/.julia/v0.6/Cairo/src/Cairo.jl:595

[timholy]

Fixed by JuliaGraphics/Cairo.jl#220