WP-4158: fix clubs listing after header change.
WP-4158: teaser theming.
WP-4158: teaser responsive implementation.
WP-4158: changes to layout b.
WP-4158: center the column.
Merge branch 'WP-4250' of github.com:gsbitse/gsb_theme into WP-4250

Conflicts:
	css/style.css