Basic config idea working for git features.
Add support for missing Vendor classes.
Remove vcr downloads from version control.
Bring back the simple options for Vendorfile.
Remove require_relative.

Brings back ruby 1.8 support and makes Travis happy again.
Add defaults for option extensions.
Add register_module to vendor modules.
Proper setup of basic options.
Revert "Remove vcr downloads from version control."

This reverts commit 5ba34d363d6753aa86bc6bdf687f216489e6936d.
Remove vendor.install!
Specs cleanup.
Add getter for option value in Vendorfile.
Adjust specs for Ruby 1.8.7 compliance.
Merge branch 'develop' into feature/refactor-configuration
Drop mixlib-config dependency from the gem
Merge branch 'feature/refactor-configuration' into develop