Added sensible defaults, fixed indent bug

Run with no arguments, will create an on-demand instance
in the east region, using the Amazon AMI, m1.small size,
create a key based on username, sec group based on username
tags, key, etc

Bad indent bug in the db area, would only add one host record
to the database

Killed some old test code.
Test driver program
Merge branch 'master' of https://github.com/mgrundy/testutils