New plugin: check memory usage by user
fix bug
New plugin dhcpd-pools for ISC dhcpd

Requires dhcpd-pools - ISC dhcpd pools usage analysis http://dhcpd-pools.sourceforge.net/
Update cpu_

fixed /proc/stat parsing issues
Merge pull request #467 from rkarlsba/patch-1

Update cpu_
Merge pull request #465 from speedj/master

dhcpd-pools for ISC dhcpd pool usage graphs
Merge pull request #464 from opendbteam/master

New plugin: memory usage by user
Merge branch 'master' into top