Additional introspection cells on data frame content.

The rest of the notebook is pretty much the same but with
different date values for the queries.

Turn off cert verify on query.
Change default date ranges and inspected nodes (still needs to
be more data driven).
Add better logic for checking for saved data.
Add save data logic at end of notebook.

Create a meta-pattern plot for all nodes.
Clean up all multi-node plots with a shared x-axis and correct
legend placement on subplots.

Plot power data on a per-node bases and create a plot for all nodes missing
data in the past month.

The queries to bcm were failing do to invalid cert validation.
Not clear what changed but it seems to be with the cacert bundle.
Just set the request to no-verify as a work around.