Fix issue when seconds is greater than two digits.

Also only use one query rather than a loop.
Report properly when value is undefined (slave error).
Merge pull request #543 from colinmollenhour/patch-1

Fix issue when seconds is greater than two digits.
Made Munin plugin to graph signal levels from a Cisco EPC3010 cable modem
Fixed some typo in text
Changed to a more secure way of handling tempfiles
Moved all Raspberry Pi plugins to a common raspberry-pi directory. Removed absolute path in raspi_temp to make the plugin work on Pidora.
Merge pull request #545 from stoile/master

Cleanup Raspberry Pi plugins
Simplified parsing of the html table. Everything is done with awk. Got rid of cat and grep
Changed how tempory filename is created and handled. Now follows example in mktemp documentation.
Merge pull request #544 from xiphias256/epc3010

Made Munin plugin to graph signal levels from a Cisco EPC3010 cable mode...
p/cisco-epc3010_: fix tmpfile handling
enable scaling for file size graph
fix graph_total configuration
add support note
Due to Logging API changes this plugins does not support Moodle 2.7 and newer versions
Fix issue when seconds is greater than two digits.

Also only use one query rather than a loop.
Report properly when value is undefined (slave error).
Merge remote branch 'origin/master'