YouTube: Modernizr initialization

# DO NOT MERGE (unless you want to squash)
- Hacky setTimeout wait for the second script to load
- Unrelated Grunt watch peice that I'll PR separately
- My own bad console.log detritus

Videos from https://www.youtube.com/user/WorkinginCanada

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I'll try to clean this up tonight, but I thought this would be better than just commenting

/cc @masterbee