pnp4nagios templates: added total bytes to graph

The graph shows now the total values of in and out traffic based
on the seen timeframe.

Using the rrdtool TOTAL function and some calculating from bits
to bytes.
Merge pull request #4 from lazyfrosch/lazyfrosch-dev

pnp4nagios templates: added total bytes to graph
updated todo
added famfamfam icon set
0.04-2 cancelled, list updated
Not empty check on result array moved here, OID passed with related info
(in progress). Fix for unixsnmp when object not available.
don't use utils.pm anymore (deprecated soon), oids in a hash format,
netapp support first try (model, in/out traffic), split traffic and
err/discard function for flexibility, removed all checks of returned snmp
arrays (now in SnmpUtils), renamed lots of oids for quick understanding,
draft of perfdata in bps, some code optimisation
T OPERATIONAL!, mib source info for used oids, starting f5 bigip devices
support integration, new workflow for device support extension, reviewed
calculate bandwidth capacity function, nodetype change protection, some
alert/warning messages now printed in generated html, netapp low+high 32
bits counters support, fix servicename with ".", fix nodenames with " "
Thanks update
Todo update
some function splits + dedicated functions
syntax fixes, config table generation review
first part f5-bigip support integrated
some code cosmetic, new field selection system, remaining function split,
removed embedded man as not uptodate
better sorting library, alias now option, added missing netapp part,
nodetype standard
ipinfo now as an option, split of netscreen functions
fix when pkt errors/discards not all available
clean deprecated function
finished bigip (dirty)
new option snmp v3 contextname