IP replacement and router setup added to main
Generate a keypair on the fly

This way I don't need to forward ssh agent to my environment.
Fix unassigned variable issue
vm killer script creation
Less werbose ssh waiting
Added a small delay after domain replacement
Fix errexit (wanted to use xtrace)
Rename the main script, also add some doc
Print out a connection string at the end
Merge pull request #8 from matelakat/extract-a-main

Extract a main