rhc_extended: Fixed find_application in rhc_helper

This was causing the extended tests to fail after we moved
find_application from `domain` to `client`.
Bug 916122: Avoid misleading port-forwarding specification for MySQL.

mysql client forces UNIX socket if the host is specified as 'localhost'.
Avoid this by displaying the numeric IP.
Merge pull request #314 from fotioslindiakos/rhc_extended_fix

rhc_extended: Fixed find_application in rhc_helper
Merge pull request #315 from BanzaiMan/dev/hasari/bz916122

Merged by openshift-bot
US3328
Merge remote-tracking branch 'upstream/master'