Fix: undefined method `country_code' for nil:NilClass
Show 404s instead of 500s when people navigate to bad levels.
Disallow Robots
Force all encoding settings to UTF-8.
public/health_check was shadowing Home#health_check
Force HTML responses for malbehaved user-agents.
Untested fix for health_check bipass.
Fix escaping
Include today's milestone logs in the total (not just archive files)
output results in json
Merge pull request #202 from brandonbloom/utf8

Force all encoding settings to UTF-8.
Merge pull request #203 from brandonbloom/fix-health

public/health_check was shadowing Home#health_check
Merge pull request #204 from brandonbloom/accept

Force HTML responses for malbehaved user-agents.
Merge pull request #200 from brandonbloom/more-nils

Show 404s instead of 500s when people navigate to bad levels.
Merge pull request #199 from brandonbloom/nil-location

Fix: undefined method `country_code' for nil:NilClass
Allow robots at root.

See:
https://developers.google.com/webmasters/control-crawl-index/docs/robots_txt

Some research suggests that all the major players support this.
Merge pull request #201 from brandonbloom/robots

Disallow robots
Fix syntax error (on prod nginx at least)
Remove stopped staging servers
Change teacher prize rules + add expiration date to terms