Fixes for numbered subplot bugs in GH1050#1057

Merged

jonmmease merged 4 commits intomasterfrom bug_1050

Jul 17, 2018

+111-7

Commits on Jul 15, 2018

Fix for #1050 . Can't create numbered subplots in update
jonmmease
committed
Added missing mapbox and polar subplot id support (See #1050 )
jonmmease
committed

Commits on Jul 17, 2018

Handle .update on subplots with number 1 (e.g. xaxis1)
jonmmease
committed
Convert plotly objects to dicts before iterating over the in update.
jonmmease
committed