added flexslider as vendor

removed css enqueue from slider plugin main php file and added it as vendor, loaded thru theme.scss
variable naming edits

edited names of some variables for more semantic and controllable usage
Merge branch 'master' of https://github.com/gp6shc/SSK into StructuredAssets

Conflicts:
	wp-content/themes/ssk/assets/config.codekit
	wp-content/themes/ssk/assets/css/theme.css
	wp-content/themes/ssk/assets/scss/.sass-cache/35c5ce43d71bb29227569848aef5fc8400d52d78/_flexslider.scssc
	wp-content/themes/ssk/assets/scss/.sass-cache/825da6d9daacc3ade46d59310a77a5e092f9f2c0/_base.scssc
	wp-content/themes/ssk/assets/scss/.sass-cache/8c504b79e8ca512d6ed6fb74f6c682fcb2652159/theme.scssc
	wp-content/themes/ssk/assets/scss/partials/_base.scss
	wp-content/themes/ssk/assets/scss/theme.scss
	wp-content/themes/ssk/assets/scss/vendor/_flexslider.scss
changed sass variable names

edited names of sass variables for a more semantic and reusable approach