Better Error Handling In run_all.sh

[afroDC]

run_all.sh, while initially meant to be a simple automated example of deploying Gluu Server, is now becoming the preferred mechanism to launch Gluu Server on a single host. As this is the case, we need better error handling and mechanisms to show the end user why failure is happening. That will require better error handling.

[afroDC]

04c5f2a#diff-62bb28be13f3c2b95d02eca4992ad187