Stable 3.0.0

This is release of Catproduct Content for VM3.x and J3.x.

v3.0.0 (10. June 2016)
- Total rewrite of javascript to avoid all issues in the past and fully support VM3 features
- Rewrite Catproduct Content to support groups of products
- Rewrites of all layouts. Less and easier code.
- Added support for non-variant customfields to all layouts.
- Added simple responsible css.
- Added option Add-to-cart button for each product or for all products.
- Added option to add settings for each group, like titles, default quantities, different layout for each group