Add Rspec to Rakefile


Signed-off-by: Aymeric Brisse <aymeric.brisse@perfect-memory.com>
Update Default Extractors List

Signed-off-by: Aymeric Brisse <aymeric.brisse@perfect-memory.com>
Refactoring of assign_request_options which now uses an Array that lists authorized options.

Signed-off-by: Aymeric Brisse <aymeric.brisse@perfect-memory.com>
Add 'language' to the list of authorized request options

Signed-off-by: Aymeric Brisse <aymeric.brisse@perfect-memory.com>