add scroll-top btn;
add jcarousel for main-gallery block;
fix jcarousel correct rotation;
add mail sending for order-form;
change fonts-names object in _variables.scss; fix font-includer mixin;
split default.scss on ui.scss and default.scss;
Merge branch 'php'

Conflicts:
	app/css/ui/default.css
	app/scss/ui/default.scss