Merge pull request #227 from rgagnon24/master

Add ability to hide scrollbar
Merge pull request #228 from rgagnon24/master

Reformatted and add missing items
Merge pull request #229 from rgagnon24/master

Fix events being fired multiple times
code style; update build
ribbon.css locally
Merge pull request #230 from rgagnon24/master

Add dragSelection methods, ignore scrollbar clicks
code style; update build; bump minor version
rm user-action from readme
Merge remote-tracking branch 'upstream/master'

Conflicts:
	src/drawer.js
	src/wavesurfer.js