Guide.ytick should accept a range

[cmcaine]

using Statistics
using Gadfly

plot(
    y=1:15|> cumsum,
    Geom.line, 
    Guide.yticks(ticks = 0:25:100 |> collect))

It would be nice not to have to collect the ticks myself.

In my testing adding this constructor is sufficient:

Yticks(label, ticks::AbstractRange, orientation) =
    Yticks(label, collect(ticks), orientation)

[tlnagy]

Agreed. This would be really nice to add, I often forget to collect ticks as well. Do you mind submitting a PR with this change? Also, could you fix it for XTicks as well?

[cmcaine]

PR submitted.