test echo add port to server host

Signed-off-by: Andy Green <andy.green@linaro.org>
test echo versa + uri

Signed-off-by: Andy Green <andy.green@linaro.org>
Subject: [PATCH] serve_http_file: add feature test macro for API change
 introduced in 917f43
test echo unbreak no server

Signed-off-by: Andy Green <andy.green@linaro.org>
test-ping.c: correct uint64_t printf conversion

gcc version 4.7.2 (Debian 4.7.2-5) complains about incorrect conversion