Add in ability to set postgres extensions via environment variable.
first_run.sh now looks for and reads from a list of extensions,
and attempts to install each.
Extension creation is now global within server, change script to
install extensions into the passed databases.
Oops ... left in debug flag
Remove debug flag from before. Extensions now working as expected.
Merge branch 'master' into db-refactor
Make sure extensions work for multiple databases
Fix script. Verify working.
Update first run script
Merge pull request #24 from jonmorehouse/master

Add in "extensions" capability for automatic creation of installations on `docker run`