Porto - Multipurpose WooCommerce Theme 7.0.9

- Updated woocommerce files to the latest version 3.5
- Updated single product page layout on tablet
- Fixed php warnings in the following php files
1. header/header_19.php
2. inc/functions/general.php
3. inc/functions/layout.php
4. inc/lib/infinite-scroll/infinite-scroll.php
- Fixed star rating style issue on IE browsers
- Fixed skin.css compile error when leaving empty values for some colors in theme options
- Fixed shop archive page horizontal style issue on window resize
- Fixed issues on Google Structured Data testing Tool
- Fixed a gravity form compatibility issue after submitting ajax form
- Fixed an issue in product quick view on variable product which has more than 30 variations

- Fixed theme options compiling issue when giving empty value for Theme Options -> Skin -> Footer -> Ribbon Background Color

- Updated theme options to add font control section again
- Updated site to wide width on tablet and mobile browsers ( <= 991px )
- Fixed css compile error when using empty value for header top background color in theme options