Fix sublime project setiings

Signed-off-by: Maria Shaldibina <mariash@pivotallabs.com>
Use sigar CollectCpuStats to get CPU average over recent period

SigarCollector now start collecting data every 10 seconds in
background immediately.When agent is asked for cpu stats it
returns the last collected value.

* Reported user CPU usage includes nice CPU time

Signed-off-by: Dmitriy Kalinin <dmitriy@pivotallabs.com>
Signed-off-by: Michael Maximilien <maximilien@acm.org>
Signed-off-by: Phan Le <ple@pivotallabs.com>