plotlyServerURL config option overridden by plotly_domain from ~/.plotly/.config

[michaelbabyn]

Setting plotlyServerURL in the config dict passed to iplot will always create a plot where the "Edit in Chart Studio" button sends the plot to the base url defined by plotly_domain.

This code won't change the plotly url used by the "Edit in Chart Studio" button

import plotly.offline as py
import plotly.graph_objs as go
py.init_notebook_mode()

py.iplot([go.Scatter(y=[2,3,4])], config=dict(showSendToCloud = True, plotlyServerURL='https://myserver.com'))

and this code will

import plotly.offline as py
import plotly.graph_objs as go
import plotly.tools as tls
py.init_notebook_mode()

tls.set_config_file(plotly_domain='https://www.myserver.com')
py.iplot([go.Scatter(y=[2,3,4])], config=dict(showSendToCloud = True))

I think it would be good to add a check to see if plotlyServerURL is already present in the config dict before setting it to plotly_domain (relevant code).