Compression for koel

src/freedombone-app-koel

         echo '' >> $koel_nginx_site
         function_check nginx_compress
         nginx_compress $KOEL_DOMAIN_NAME
+        echo '  gzip_comp_level 9;' >> $koel_nginx_site
         echo '' >> $koel_nginx_site
         echo '  # Security' >> $koel_nginx_site
         function_check nginx_ssl
     echo '' >> $koel_nginx_site
     function_check nginx_compress
     nginx_compress $KOEL_DOMAIN_NAME
+    echo '  gzip_comp_level 9;' >> $koel_nginx_site
     echo '' >> $koel_nginx_site
     echo '  # Logs' >> $koel_nginx_site
     echo '  access_log /dev/null;' >> $koel_nginx_site
     echo '' >> $koel_nginx_site
     echo '}' >> $koel_nginx_site
 
+    sed -i 's|gzip_types.*|gzip_types text/plain text/css application/x-javascript text/xml application/xml application/xml+rss text/javascript application/json;|g' $koel_nginx_site
+
     function_check configure_php
     configure_php