Add txn_type field to Request
Change require's to relative paths
Correct spelling mistake when referencing language variable
Remove ActiveSupport dependency
Remove unused isolate_constants method from spec_helper
Add ISO-8859-1 encoded character to response fixture
Convert minFraud response to UTF-8
Relocate module attributes from Request
Move development dependencies to Gemfile

Setup Bundler in spec_helper to allow us to run individual tests