Hoverformat fails to apply when showticklabels=False

[jzuccollo]

When setting a hoverformat on an axis, the format is not applied unless showticklabels=True. For example, the following hoverformat silently fails to apply:

from plotly.graph_objs import Scatter, Layout, YAxis, Figure
import plotly.plotly as py

data = [Scatter(x=[1, 2, 3],
                 y=[0.12345, 0.23456, 0.34567])]
layout = Layout(yaxis=YAxis(showticklabels=False,
                            hoverformat=",.2r",))
figure = Figure(data=data, layout=layout)
py.iplot(figure)

[yankev]

@jameszuccollo So this might be an issue with the javascript backend. I've posted this issue in the plotly.js repo: plotly/plotly.js#261.

[cldougl]

fixed w/ plotly/plotly.js#267