The following can be added to a .htaccess file in your public_html to redirect access to the public folder.
<IfModule mod_rewrite.c>Options +FollowSymLinksRewriteEngine OnRewriteCond %{REQUEST_URI} !^/public/RewriteCond %{REQUEST_FILENAME} !-dRewriteCond %{REQUEST_FILENAME} !-fRewriteRule ^(.*)$ /public/$1RewriteRule ^(/)?$ public/index.php [L]</IfModule>
