Shore up the codebase for Gem packaging

* remove require_relative, pre Gem packaging
* remove Provisioner module -- was polluting a separate namespace
* rename vcloud-provision to vcloud-launch, including related class names
Anonymise the codebase, removing GDS references

* anonymise author name in gemspec
* strip GDSisms from example/test yaml
* rename facts hash to vars -- to prevent confusion with facter facts
do not barf on missing bootstrap config section
use minifier.py from libexec dir -- RubyGems was not handling it being in bin/
bump version to 0.0.2
Merge remote-tracking branch 'origin' into clean_up_initial_release
Merge pull request #5 from alphagov/clean_up_initial_release

Clean up initial release