Adds configuration options (api_id, api_key) to Yubikey, which can be set in an initializer, and used as default values for Yubikey::OTP::Verify
Add example file for using the configure options
Add configuration.rb to gemspec files list
Fix 1.9 hash syntax breaking the 1.8 builds
Merge pull request #14 from wndxlori/master

Add configuration options to Yubikey