Add plugins for Sick-Beard

 * Number of shows (sample: http://imgur.com/5Uxih)
 * Number of Episodes (sample: http://imgur.com/3fG8M)
misc: make some plugin speak dirtyconfig, saving a few roundtrips.
snmp__if_combined: rework to have both combined and split graphs available.

This basically almost replaces snmp__if_multi in full, as sub-graphs
with interface traffic are generated as a set of detailed graphs. It
doesn't yet compose graphs with the interface errors though.
snmp__if_combined: graph all interfaces, not only ethernetCsmacd.

For routers it might very well that you're trying to graph tunnels as
well.
snmp__if_: remove in favour of snmp__if_ in main repository.
snmp__if_combined: restore the error graphing as it's done on snmp__if_multi

This brings it basically on feature parity with it, and more.
snmp__if_multi: fix properly ifAlias usage.
Moved sphinx_* plugins from directory php/ to sphinx/ because they're made to monitor sphinx search engine.
Added new plugin to monitor lighttpd web server
add license
Update plugins/network/ip_forward_

Fix typos in plugins/network/ip_forward_
Merge pull request #211 from nukleus/patch-1

Fix typos in plugins/network/ip_forward_
snmp__if_combined: provide CDEFs directives for the combined graph as well.

Borrowed data is raw, so in this case we want to make sure it's expressed in bits rather than octects.
snmp__if_combined: don't use cdef to generate the final value.

This actually simplifies the code, and avoids extra work on the master
side for no reason.
snmp__if_combined: rewrite error handling.

Instead of just having a single "errors" value on the per-interface
error graphs, split it in errors and discards, then provide a total
for the combined graph.

This way it's possible to see more details of what's going on at the
interface level.
snmp__ifx_: remove, superseded by snmp__if_.

This plugin does not use the standard Munin SNMP plugin interface, and
is, nowadays, duplicating the functionality present in the main
snmp__if_ plugin, which uses the 64-bit counters by default if
present, and fall back to the 32-bit ones if not.
snmp__acp_ups2_: remove commented-out cdef line.
snmp__acp_ups2_: move to sensors category.
snmp__apc_ups2_: rename correctly.
apache_status: change the vlabel to use the same unit as input.

This way it's possible to avoid the cdef altogether.