Test failures
Fix git package name
Fix notifies/requires, add tests for them
Change from ensure_packages to ensure_resource to make even less assumptions
Add rspec-system-serverspec gem
Add tests serverspec tests
Test ensure_resources by installing a package
Refactor varnish::instance system tests

 * Trying to prematurely optimize with contexts led to a failure of
   serverspec system tests which apparently execute all at once at the
   END of a describe section.
Add function to varnish init to make storage directories
Remove debug statements
Update todo
Bump changelog
Update todo
Update README
Update README
Update README
Update README
Update README
Update default.vcl