Added quick install shell script
Account URL is provided with the https://
Integrate API into installer script to automatically create device

Script now takes -t and -g options as optional instead of -k so if the
agent key is not specified, an API token can be specified instead. The
script will then call the API and create the new device based on the
hostname (optionally specifying a group too), get the agent key and
populate the config file appropriately.

Thanks to Scott Feinberg <scott@allout.org> for the initial code for
this.
add cpu stats using sar
stop name conflict
make at least one report back
was ok the first time
Handle the case when MySQL Seconds_Behind_Master is NULL by mapping it to -1
Updated doc links to new KB
Updated docs links
Return "ALL" from mpstat

Allows you to get an aggregate of all CPUs on a server, useful if you
have many cores
Merge pull request #57 from serverdensity/osx-cpu-stats

Osx cpu stats
Merge pull request #60 from amr/mysql-seconds-behind-master-null

Handle the case when MySQL Seconds_Behind_Master is NULL
Merge branch 'master' into CPU-all
Added disk i/o stats on OS X
Merge pull request #63 from serverdensity/osx-iostat

Added disk i/o stats on OS X
Merge branch 'CPU-all' of github.com:serverdensity/sd-agent into develop