only get wp_nav_menu if there are wp_nav_menus to get
only get wp_nav_menu if there are wp_nav_menus to get

PrisisForks/timber,joelgarciajr84/timber,anugupta/timber,ogrosko/timber,blocher/timber,aprendiendoando/timber,jarednova/timber,anugupta/timber,jarednova/timber,asecondwill/timber,timber/timber,gbarberi/timber,Jmayhak/timber,anugupta/timber,PrisisForks/timber,asecondwill/timber,xavierpriour/timber,ogrosko/timber,aaemnnosttv/timber,gbarberi/timber,rpkoller/timber,xavivars/timber,lucasmichot/timber,josephbergdoll/timber,gbarberi/timber,josephbergdoll/timber,mgmartel/timber,blocher/timber,xavivars/timber,rpkoller/timber,mojaray2k/timber,mgmartel/timber,timber/timber,gchtr/timber,aaemnnosttv/timber,mojaray2k/timber,rpkoller/timber,mgmartel/timber,lucasmichot/timber,xavierpriour/timber,pensesmart/timber,gchtr/timber,Jmayhak/timber,jnweaver/timber,gchtr/timber,jarednova/timber,xavivars/timber,lucasmichot/timber,jnweaver/timber,joelgarciajr84/timber,PrisisForks/timber,asecondwill/timber,ogrosko/timber,pensesmart/timber,pensesmart/timber,joelgarciajr84/timber,jnweaver/timber,josephbergdoll/timber,asecondwill/timber,aprendiendoando/timber,xavierpriour/timber,mojaray2k/timber,aaemnnosttv/timber,blocher/timber,aprendiendoando/timber,Jmayhak/timber