Merge pull request #4 from xorpaul/typo

fixed small typo in option info
script to check node counts and last seen times in puppetdb
Merge branch 'master' of github.com:ripienaar/monitoring-scripts
when checking node counts only check active ones
correctly only check active nodes
Merge pull request #5 from xorpaul/typo

another typo on the same line
added perfdata option and modified output text