Word cloud of causes of death

[hepplerj]

We want to add some additional features to this visualization:

• [x] ability to filter by a year/parish
• [x] hovering over a word should indicate more information (raw count, etc.)

[jmotis]

on hold until most/all cause of death data uploaded, then make it in a skull shape

[hepplerj]

Changes added, but we'll keep the issue open for exploring the shape of the word cloud.