Learn Django

https://app.getsentry.com/sentry/sentry/group/3542084/
Merge pull request #784 from mattrobenolt/patch-5

Learn Django
Default value of amount
Refactor counters to only store the number of events at a project level
Expire fetch_javascript_source after 15 minutes
Actually expire in 15 minutes :)
Improve queue docs
Add make testloop
Coerce values to unicode in redis buffer keys
Fixing typo in quickstart
Merge pull request #785 from thirteenpixels/master

Typo in docs
Initial work on alerts
Attempt to do some useful math
Tweak weighting so its more sensible based on two hour history
Track events by group and remove excess fat
Add Alert model
Remove Alert.users and add Alert.maybe_alert
Note about race condition
Improve assertions in check_project_alerts test
Support project_alert_pct option