let the README say clearly this VM is not designed for app development
Make sure hstore is available for the Postgres tests
Merge pull request #25 from pnc/master

Add postgres-contrib dependency so that hstore tests can run
rvm should not be considering installed until the bin is in place.  provision failed for me and then would not retry because .rvm existed, yet the install was not complete.  checking for a more completely rvm install should catch this type of thing
Merge pull request #26 from yyyc514/master

rvm should not be considering installed until the bin is in place.