Adds video demo
- EC button style in product single page (ref #67)
- Hide EC button in cart (ref #70)
fixes #73
Merge remote-tracking branch 'origin/EC_button' into ec_button
Adds div tags around EC button on product page
Resolves #67
Adjusts settings labels and descriptions
Merge remote-tracking branch 'origin/issue73' into issue73
Resolves merge conflict and fixes #13