Adding ubuntu services check
Adding service up/down check for SmartOS
Merge remote-tracking branch 'origin/making-sure-joyent-special-node-is-available' into adding-some-new-checks

Conflicts:
	metadata.rb
Condensing disk checks

Not printing stats for `/tmp` on Linux because, unlike on SmartOS, that is
not where swap lives
Merge pull request #15 from modcloth-cookbooks/adding-some-new-checks

Adding some new checks