[#43] Load Tabs in a lazy way

* Check for tab instantiation call to inflate views
* TODO: handle lack of inflation situations
[#63] Update build tools
[#63] Update build tools
[#43] Handle Form clearance

* Reset (populated) tabs upon clearance
* Clean up
[#43] Check tabs' state on Submit tab selection

* Lazy load all tabs
* When Submit tab is selected, load tabs if necessary
[#43] Fix tab instantiation call

* Loop through all tabs (except Submit)
Merge branch 'feature/questionviews' into feature/redesign