Fixes SMTP - Moderatley Critical - Information Disclosure - SA-CONTRIB-2017-055
#2731361: Result message display is changed due to Capture plus API update.
Update DuoWeb SDK to version 2.6
Improve loading the library and ensure to load it only once
Fixes DRD Agent - Critical - Multiple vulnerabilites - SA-CONTRIB-2017-047
Implement interactive dashboard authorisation