Move source files into 'src' dir. Integrate streamhub-sdk
Refactor dom structure creation for deck view
Removed unused styling that has ben superceded by Content styling in new sdk
Remove unused views and templates that are superceded by new sdk
Remove unused YoutubeDeckFeedView
Update unit tests for deck view
Remove logic of building supplementary heading content
Add YoutubeHeading view
Merge pull request #12 from cheung31/streamhub_sdk

Integrate new streamhub-sdk