Added second exercise in exercise list, that uses view pager for 
displaying seven steps in exercise. Integrated functional attaching of 
the new notes and displaying current page. 
Improved web view manipulation and introduced page caching.
Changes in both code and layouts.
Upgraded quiz view pager so that now uses web view for displaying
answers.
Added all necessary asset files (HTML and PNG) used in application.
Generated unsigned apk and signed apk with keystore included.

Worked from 21:03 to 00:03