add MiniTest example too
update TODO
allow modulepath/manifestdir to be specified directly

This is trying to get away from requiring the use of RSpec in the consumer.
We currently require RSpec.configure in order to specify modulepath etc. We
should provide a means of configuration without requiring RSpec.
make params a required parameter for #instantiate
remove monkey-patch which was only ever used for debugging
experiment with OO interface to hold config
remove RSpec configuration
update CHANGELOG for new version
remove Fizzgig::Matchers; use matchers from rspec-puppet
add changelog entry about removed matchers