SOAP-1411
Starting work on automatically refreshing access tokens if they are expired.
Fixed merge conflicts. I think.
SOAP-1411
* OAuth2TestUtils class to avoid messing up encapsulation design
* Moved OAuth2 mocking test method to the utils class
* Implemented automatic token refreshing in the OAuth filter
SOAP-1411
* Added test scenarios
SOAP-1411
It works! Did some refactoring, and added unit tests.
Log the message when refreshing the access token
SOAP-1554: Log the message in test case log when failed to refresh the access token
Added scenarios for command line and for the error messages when it fails to refresh the access token
revise the feature discription
Updated feature description
Merge branch 'automatic-access-token-refreshing-SOAP-1411' of github.com:SmartBear/soapui into next
Merged next to implemnt-gui-for-progressive-disclosure