Needs an example config file and rc.d script

This package should really test for OS-specific stuff:
 lm-sensors when on linux
 libstatgrab on *BSD

Put everything in options since there are 70 possible plugins for this


rhaamo@gruik.at:
Better dependencie for postgresql than postgresql84-client ? (need pq)
Better dependencie checking for plugins which need libstatgrab ?

check for plugins:
 - rrdcached
 - disk (realy works under netbsd? http://collectd.org/wiki/index.php/Plugin:Disk)
 - fscache (http://collectd.org/wiki/index.php/Plugin:FSCache)
 - hddtemp (sysutils/hddtemp has no buildlink3)
 - memory (realy works under net? http://collectd.org/wiki/index.php/Plugin:Memory)
 - network (can optionally use libgcrypt http://collectd.org/wiki/index.php/Plugin:Network)

Mac only:
 - apple_sensors	(http://collectd.org/wiki/index.php/Plugin:Apple_Sensors)

 Linux only:
 - battery		(http://collectd.org/wiki/index.php/Plugin:Battery)
 - connrack		(http://collectd.org/wiki/index.php/Plugin:ConnTrack)
 - contextswitch	(http://collectd.org/wiki/index.php/Plugin:ContextSwitch)
 - cpufreq		(http://collectd.org/wiki/index.php/Plugin:CPUFreq)
 - entropy		(http://collectd.org/wiki/index.php/Plugin:Entropy)
 - iptables
 - ipvs
 - irq
 - madwifi
 - netlink		(http://collectd.org/wiki/index.php/Plugin:Netlink)
 - nfs
 - protocols
 - serial
 - thermal
 - vmem
 - vserver
 - wireless

Other:
 - java			(i don't have/use java)
 - oracle		(i don't have/use oracle)
 - load			(can use libstatgrab or libperfstat(3) AIX or getloadavg(3) etc..)
 - netap		(http://collectd.org/wiki/index.php/Plugin:NetApp)
 - tokyotyrant		(http://collectd.org/wiki/index.php/Plugin:TokyoTyrant)
 - XMMS			(http://collectd.org/wiki/index.php/Plugin:XMMS)

Need libs not in pkgsrc:
 - gmond		(http://collectd.org/wiki/index.php/Plugin:gmond)
 - ipmi			(http://collectd.org/wiki/index.php/Plugin:IPMI)
 - libvirt		(libvirt http://collectd.org/wiki/index.php/Plugin:libvirt)
 - nut 			(libupsclient http://collectd.org/wiki/index.php/Plugin:NUT)
 - onewire		(libowfs http://collectd.org/wiki/index.php/Plugin:OneWire)
 - ping			(liboping http://collectd.org/wiki/index.php/Plugin:Ping)
 - process		(libkvm? http://collectd.org/wiki/index.php/Plugin:Processes)
 - routeros		(librouteros http://collectd.org/wiki/index.php/Plugin:RouterOS)
 - sensors		(lm-sensors http://collectd.org/wiki/index.php/Plugin:Sensors)

