Update default service names

Uses :test-env-vmfest, :test-env-aws, and :test-env-jclouds
pallet-test-env depends on com.palletops/crates

Uses the RELEASE version specification so latest image defintions are
always picked up.
Remove the :parent in project.clj
Use :subprocess false for lein-modules

This avoids issues with the lein executable name hard coded in
lein-modules, which doesn't match the `lein2` name used on travis.
Updated project.clj, release notes and readme for 0.1.2
Add :subprocess false to child projects
Updated version for next release cycle