ortest: nginx_cc_opt was not applied to nginx module builds.
ortest: ./dispatcher: added -S option to disable systemtap test mode; also added the "-o <nginx cc opts>" option.
ortest: specify the extra cc opts, -DNGX_LUA_USE_ASSERT -DNGX_LUA_ABORT_AT_PANIC, when building nginx modules unless for the "o" testing mode.