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[odenbach]

Hi again,

this pull request is all about minimizing the plugin output to focus the admin onto the problem. It changes quite a lot, so I would like to comment on the different commits:

• (the new option --mem-modules from my previous pull request)
• raise_alert() is now called once for every hardware. This makes it a lot easier to collect every single warning message to be able to display it accordingly.
• output now occurs only after every single item has been checked. Then critical or warning messages are printed before everything else (which can additionally be suppressed by the --quiet switch).
• I added a --debug switch to quickly enable additional output without having to edit the source.
• the disk attribute "isFailing" was not chosen wisely: snmpget does not translate the boolean value 0 or 1 to anything readable. So I translated 0 to 'ok' which is included in the default ok-list.
• Just as in issue ROMB Battery returns value of 0 or 2147483648 when not available #12 our R320 servers also return -2147483648 for non-existing batteries. So I translated this value to '(n/a)' which works perfectly.

If you have any questions please let me know.

Cheers,

Christopher