Add labels in popups

[ezheidtmann]

Re #27, this PR renders data labels in a popup window. Feedback welcome.

[jwass]

Hi @ezheidtmann

I was away on vacation the past two weeks and just catching up on things now.

Can you include an example of this? I was trying to get it work using annotate() but the labels weren't coming through.

[ezheidtmann]

New to matplot; not sure if I'm doing it the right way, but I think I saw this style in the sklearn examples.

import matplotlib.pyplot as plt
import mplleaflet
# ... get data ...
plot.plot(x, y, label='yo')
mplleaflet.display()

[seperman]

Any updates on this PR?

[ghost]

I can confirm that this works.