Update deb packaging to launch its own supervisord
Update Debian init.d to better conform to Debian Policy Manual
Update deb supervisor log location
Update deb init.d to use init-functions
Merge branch 'master' into deb-supervisor-conf-2

Conflicts:
	packaging/datadog-agent-base-deb/datadog-agent.init
Merge branch 'master' into deb-supervisor-conf-2
Update deb base init.d start output
Fix typo in deb init.d script
Addressing issue #131 -- Add I/O metrics on Mac

Apple's version of iostat reports different metrics than Linux, FreeBSD, or SunOS. This adds
three new metrics under system.io to log sectors per second (system.io.sectors), transfers per
second (system.io.transfers), and milliseconds per seek (ms_per_seek).
Add unit test for _parse_darwin

Checks that sample output from iostat on OS X 10.8 parses correctly
Rename 'ms_per_seek' to 'ms_per_transaction'

The manpage for iostat on Mac uses both terms, but
Renamed Darwin disk metrics, discarded msps

system.io.sectors is now system.io.sectors_per_s,
system.io.transfers is now system.io.transfers_per_s,
and system.io.ms_per_transaction is removed because it is
inconsistently defined in the manpage (and always reads 0.0)
Update deb init.d script
Merge pull request #530 from DataDog/issue131

Addressing issue #131 -- Add I/O metrics on Mac
New-style metric is (marginally) more informative

Sectors per second is not that useful if you don't have the sector
size on hand. Even though reads and writes are combined, one knows
more or less what bytes per second means.
Merge pull request #533 from DataDog/issue131

On second thoughts, let's not go to old metrics!
Merge pull request #524 from DataDog/deb-supervisor-conf-2

Update deb packaging to launch its own supervisord
Update Debian supervisor config packaging. Associated with PR 524.
Fix Debian postinst scripts to start agent. Associated with PR #524.
Remove potentially scary message from deb preinst script