Updated to new Session Class to be less dependent on files

1.0.0

Added new Session Class

New Release

Validating a locally saved token now returns the access or refresh Token. More in the Tutorials
When saving the tokens locally a method adds them to the .gitignore
Some Authentication Endpoints may not return expires_in therefore the logic for calling the calcExpiryDate was updated

First Release

0.3.1

Update refresh.py