Use status code to detect server up

ACF9 has the issue that the server is responding before it is
ready, so we check for a "200" status code before we assume the
server is up.
Initial ACF9 support

New helper script for ACF9, and a separate startup script as JRun
uses a different startup method.
Add CF902 remote URL
Add CF902 to Travis build matrix
Fix base path in ACF9 control script
Add ACF9.0.2 to README
Merge branch 'acf9-support'