Intermittent failure problems with main install script

[Terry-Weymouth]

When running the install scripts in a clean ubuntu 14.04 on AWS Ec2 or VirtualBox VM instances, the scripts sometimes succeed in loading and launching all the parts, and sometimes fail. The failure points appear to be actions involved in starting Rserve, Tomcat, and SOLR, and in the last loading steps of the scripts (for example, the loading of the war files into tomcat). I strongly suspect that we are running into some race conditions where the lag in prerequisite setup steps is blocking downstream actions. I've added check-and-fail stages to the main install script, in the hope that we can catch some of these conditions and better understand what is happening.

[Terry-Weymouth]

Problems persist, resulting in a 30%-70% failure rate (apparently depending on network speed). Working on more fine-grained checking.