Implement passcrow.org monitoring

This code lives in passcrow.mon. Progress:

[x] Poll the stats endpoint to gather live info about running servers
[x] Measure the performance (response time) of the above polling
[ ] Measure the availability (error rates) of the above polling
[x] Periodically put data in escrow, monitor success/failure rates
[ ] Periodically initiate verification and retrieve data from escrow, monitor success/failure rates
[x] Use a JSON file from this repo to control which servers we monitor
[x] Display monitoring summary in tabular form on the website
[x] Publish monitoring summary as JSON on the website
[ ] Document how to set up monitoring of your own servers using passcrow.mon

mailpile / python-passcrow