Change name of fact-nodes operator to fact-contents

Signed-off-by: Ken Barber <ken@bob.sh>
Merge pull request #1063 from kbarber/maint/master/rename-fact-nodes-endpoint

Change name of fact-nodes operator to fact-contents
(maint) Add pretty SQL formatting

This patch adds a dev only feature to be used primarily via an nrepl to
enable both pretty SQL and analyze outputs to be printed to the info log
output. Useful for debugging live API queries for performance hangups.

Signed-off-by: Ken Barber <ken@bob.sh>