Office 365 Tip: Referencing third-party JavaScript libraries in Master Pages with Design Manager

When you are converting existing HTML design to SharePoint Master Page with Design Manager, you often need to reference third-party script libraries used for functionality on pages. I recently had a case with SkelJS (version 0.4.9 ) which was used in source design to provide functionality to make pages responsive (source design was a freebie taken from Templated). During conversion Design Manager didn't change the