Add dp_connect to index page, for logout popup to work.
data-origin is replaced by data-is-sandbox.
Make it clear that those have to be filled in.
Sanbox instance is obsolete. All request go to www.mydigipass.com now….

… application will still run in sandbox mode for integration, see developer.mydigipass.com.
Updated README to reflect changes in application integration lifecycle.
Update Gemfile structure, to remove deprecation warning.
Add a dummy secret, to get rid of one more warning.
Merge pull request #4 from wrtsprt/master

Updated gem according to new developer integration guidelines