Only kill wild caches if $WILD_CACHE = true
Fix up committing and failing intents to dever adding comments.

We were adding comments before the upstream tracking repo was updated.
Fix fetch_all_gems

Make certian that rubygems/version_option is loaded before I patch it.
Load RVM environment, if exists

This is needed to load the RVM environment when called from a cron job.
Update Travis setup

Move from travis-ci-crowbar_framework repo to travis-ci-crowbar. This
allows us to add the `barclamps` directory, which is required for
running the unit tests (introduced in a recent commit).

Also allows us to add Chef and BDD testing later on.