Make it work again

- Ruby SVD replaced with GSL because it did not work correctly in Ruby 2.x
- simplified structure
- version bumped to 0.1.0
Removed dependency on GSL

- version bump to 0.2.0
- comment out tests for now
pulled in changes from beny; switched to bundler style repo
updated Rakefile to be accurate
progress
worked out shared spec
reworked shared example and should => expect rspec form