optionally normalize counters and rates to be per-second
update doc in datadog.conf.example
re-send agent metadata every 10 minutes (instead of 5 hours)
sum dogstream counters

update test
Merge branch 'master' into sum_dogstream_counters
default to normalizing metrics in dogstatsd
Convert varnish check to checks.d check
Port Apache check to checks.d
Remove old apache check
Allow mysql unix socket to be configured (#259)
Implementation of normalized load (#258)
Fixed incorrect comment.
Merge pull request #260 from DataDog/normalized-load-258

Implementation of normalized load (fixes #258)
Broke test_common, fixed.
Fixed test_system.py for real.
New version of the cassandra check
Remove some unused imports
Merge pull request #252 from dcrosta/normalize-metrics

Normalize counters and rates to be per-second
support old-style config in the apache checks.d check
Cassandra and Tomcat check using new JMX Connector and Checks.d Interface