test: check for openssl cli and provide path if it exists
test: check for openssl cli and provide path if it exists

the previous version checked if io.js was compiled with openssl support which
isn't really relevant since we're starting a http server. we on the other hand
need an openssl-cli which may or may not exist.

PR-URL: https://github.com/iojs/io.js/pull/1049
Reviewed-By: Ben Noordhuis <59bd0a3ff43b32849b319e645d4798d8a5d1e889@bnoordhuis.nl>
Reviewed-By: Shigeki Ohtsu <92fb37b64464f5ee20f58e183b0504024ecd6585@iij.ad.jp>

dreamllq/node,dreamllq/node,dreamllq/node,dreamllq/node,dreamllq/node,dreamllq/node,dreamllq/node,dreamllq/node,dreamllq/node