Add Cache-Control Headers (Apache)

# TN - BEGIN Cache-Control Headers
<ifModule mod_headers.c>
<filesMatch "\.(ico|jpeg|jpg|png|gif|swf|pdf|svg)$">
Header set Cache-Control "public"
</filesMatch>
<filesMatch "\.(css)$">
Header set Cache-Control "public"
</filesMatch>
<filesMatch "\.(js)$">
Header set Cache-Control "private"
</filesMatch>
<filesMatch "\.(x?html?|php)$">
Header set Cache-Control "private, must-revalidate"
</filesMatch>
</ifModule>
# TN - END Cache-Control Headers