results.php: Add a $content array

Issue #74.
results.php: Add a results array

Issue #74.
results.html: Render results from template

Issue #74.
results.{php,html}: Add search_text to template

Issue #74.
results.{php,html}: Add results_count to template

Issue #74.
results.{php,html}: Add download to template

Issue #74.
results.html: Make results array optional

Issue #74.
css: Add a page-title-inner class

Issue #74.
_title.html: Add a div.page-title-inner

Issue #74.