Something

<VirtualHost *:8080>
        ServerName powercontrol

        DocumentRoot /var/www/powercontrol/public/
        ErrorLog /var/log/apache2/error.log

        LogLevel debug

        #RewriteLog /tmp/rewrite
        #RewriteLogLevel 2

        <Directory /var/www/powercontrol/public/>
                AllowOverride None
                Options ExecCGI FollowSymLinks
                Order allow,deny
                Allow from all

#       FastCgiServer /var/www/powercontrol/public//dispatch.fcgi -idle-timeout 120 -initial-env RAILS_ENV=development -processes 10

                ExpiresActive On
                ExpiresByType text/html "access plus 5 hours"
                ExpiresByType text/css "access plus 5 hours"
                ExpiresByType image/gif "access plus 5 hours"
                ExpiresByType image/png "access plus 5 hours"
                ExpiresByType application/x-javascript "access plus 5 hours"

                RewriteEngine On

                RewriteRule ^$ index.html [QSA,L]
                RewriteRule ^([^.]+)$ $1.html [QSA]
                RewriteCond %{REQUEST_FILENAME} !-f
                RewriteRule ^(.*)$ dispatch.fcgi [QSA,L]
        </Directory>
</VirtualHost>