Added check for running on android pools only and used it to by-pass validation of env vars as appropriate. This allows users that are not running on iOS to skip configuring env vars.
Also
Changed env vars from MATCH_SERVER==>SSH_SERVER, MATCH_PORT==>SSH_SERVER_PORT for clarity.
Removed APP_IDENTIFIER env var and replaced with app identifier from iOS project.
Skipped unpacking iOS resources if not testing on an iOS pool.
Added check for running on android pools only and used it to by-pass validation of env vars as appropriate. This allows users that are not running on iOS to skip configuring env vars.
Also
Fixes #41