Replaces vanity url generation with regex
Adds writing gunicorn pid to tmp file
Adds description to required fields
Fixes saving deceased_date and is_deceased
Renames entryTitle => entry_title
Removes unused JavaScript files messages.js and URI.js
Adds dates to entry show page.

This breaks out some of the specific show functionality to it's own js file since I was running into issues of show page specific javascript running on other pages. Need to continue that refactoring.