no longer reference rmagick
Update VCR to see errors disguised by "UnusedHTTPInteractionError"

VCR fixed by: https://github.com/vcr/vcr/pull/336
discussion: http://talk.manageiq.org/t/travis-vcr-cassettes-and-unused-http-interactions/97/2
Move the excludes file into an unless ENV['APPLIANCE'] block.

Remove loading of the excludes file.
Move test gems into an unless ENV['APPLIANCE'] block.