Kicking off PR.
Merge branch 'refs/heads/master' into mobile-friendly
Update to theme to have layout work on mobile.

Updating theme to have opinion on how padding for comment markers works. Should work better on mobile with padding on commentable-sections.
Using percentage scale for container.
Setting viewport to get mobile styles working properly.
Base responsive CSS.

Reduces the width of the side comments so that when they slide over they don't completely hide the content.
Basic drag left and drag right gestures working to move the main container.
Making sections selectable via API rather than just element clicks.
Mobile swipe to open and close working relatively well.
Binding both drag and swipe to make for more consistent interactions.
Without scale set the zoom can break the layout.
Sad console.log.
Fixing inconsistent .side-comment width.
Fixing viewport scaling issues for mobile.
Swiping working on mobile.
Getting things working decently for mobile tap. Gestures to come afterwards.
Always show add comment markers when on mobile (do not require hover).
Merge pull request #3 from aroc/mobile-friendly

Make SideComments.js work on mobile.

Major additions:
- Fixes layout issues on mobile.
- Uses `tap` instead of `click` events making for much smoother experience.
- Better responsive CSS.