Updated Travis to use libmicrohttpd-0.9.37
Updated Travis to use libmicrohttpd-0.9.37

commshare/libhttpserver,4picht/libhttpserver,commshare/libhttpserver,vozhyk-/libhttpserver,vozhyk-/libhttpserver,etr/libhttpserver,commshare/libhttpserver,commshare/libhttpserver,4picht/libhttpserver,vozhyk-/libhttpserver,4picht/libhttpserver,etr/libhttpserver,etr/libhttpserver,vozhyk-/libhttpserver,4picht/libhttpserver