Members only content, responsive styles, member detail styles

Members only content, responsive styles, member detail styles

- Members only main page now shows its content even when the user
is not logged in; only other pages with the members only template
will hide their content
- The title bar on the Members Only and the Member Detail pages
was badly spaced due to those pages lacking breadcrumbs
- Member detail now has less spacing between its content and the
ad below it on mobile view
- The sidebar ad is now centered on mobile view
- Search button has been given a larger area on mobile view since
it was getting hard to press it.