Adding interrupts, netstat, per core for cpuusage and cpuhz and top -c toggle.
ProcInterruptsMetric to parse /proc/interrupts file.
Adding new examples for cpuhz and cpuusage for per core. Adding proc interrupt log and conf example.
Merge branch 'master' into interrupts
Updating to find header in loop and conf does not have hostname anymore.
Change device to be the ascii name or the full description name.
Changing to have an is_header_line method
Merge pull request #293 from richardhsu/interrupts

Interrupt Collector and Parser