Create initialization script for GIMI to run on the EME

[johren@bbn.com]

An initialization script will be run by the experimenter within their own environment to do the following:

• create an experiment ID
• select slice(s) for the experiment
• create an iticket for the experiment
• create and prepopulate an experiment directory in iRODS
• push sliver manifests to iRODS
• push information about the experiment to the Experiment Registry (on the GIMI server).

This task will create the skeleton (first version) of the script and allow the user to specify the experiment name from which an experiment ID will be created. The remaining tasks will be tracked by other tickets.