fix rspec tests that got broken after gem upgrade
put user_agent on new machine notification email
Merge branch 'enhancements'
Merge pull request #136 from RyanTG/master

min-height to links column
allow additional metadata for machines
Merge branch 'enhancements'
fix sort ordering issue with links page
Merge branch 'enhancements'
changed site font to helvetica to work better with windows browsers