Add missing rugplot property passing inside violin_no_colorscale

[n17r4m]

When trying to plot my violin, I noticed rugplot=False was not being respected. This is a proposed fix.
As a point of discussion, should the rugplot=True|False property name be normalized between the figure factories? For example, in _distplot.py the corresponding property name is "show_rug" instead of "rugplot".

[cldougl]

Hey @n17r4m could you let me know what issue you're having exactly? rugplot=False seems to be working for me but maybe you're expecting a different result. Here's an example: https://plot.ly/~chelsea_lyn/15199

[n17r4m]

I'm very sorry, I should have added some more information.

The issue is experienced when using plotly.offline when drawing multiple violin plots (which, as I found out, requires the use of pandas DataFrames, which I think is a separate concern, as sending in arrays of data arrays is not supported by the current violin implementation, i.e. [[1, 2, 3], [2, 3 4]] does not work as expected.)

Edit: as a minimal example, adding rugplot=False, to the https://plot.ly/python/violin-plot/#multiple-violins example yields a plot that still has the rugplots.

[cldougl]

@n17r4m got it- thanks for the fix!