Update source /bin/agent commands to function like deb & redhat versions
Update source /bin/agent
Update source agent
Merge branch 'master' into source-agent-update
Update source agent
First version of event support in dogstatsd
Add tests for events in DogStatsD
Update source agent init script to give more standard exit codes
Merge branch 'master' into source-agent-update

Conflicts:
	packaging/datadog-agent/source/agent
Fix logic in source init.d script
Adding support for sending custom headers in the HTTP check.
Install expat xml parser dependency

Fixes #450
Better use of event API by dogstatsd
Fix event date_happened default in dogstatsd
Merge pull request #543 from DataDog/smartos-pkg-expat

Install expat xml parser dependency on SmartOS
add HDFS check using snakebite
add 'in_use' (percent used) gauge
Merge pull request #542 from tomduckering/master

Adding custom header support to http_check.
Fix postgresql.rollbacks metric and don't crash when tags are None.

postgresql.rollbacks metric was collecting the wrong data due to a typo.
chef-datadog 1.0.1 can create a tags entry with a None value, causing the
the agent to crash. This is now fixed.
Add optional response_time metric in tcp and http checks

Also remove trailing spaces