add cachex to travis
add cachex to travis

datathings/greycat,Neoskai/greycat,electricalwind/greycat,datathings/greycat,Neoskai/greycat,electricalwind/greycat,electricalwind/greycat,datathings/greycat,Neoskai/greycat,Neoskai/greycat,electricalwind/greycat,datathings/greycat,Neoskai/greycat,datathings/greycat,datathings/greycat,electricalwind/greycat,Neoskai/greycat,electricalwind/greycat