Merge pull request #156 from miroslavhajek/feature/backend

Feature/backend
Document tree implemented.
Tree adapted to splitted Api classes.
Use ->getView() instead of ->view in view method
Merge pull request #158 from miroslavhajek/fix/abstract-form-get-view

Use ->getView() instead of ->view in view method
Merge branch 'feature/backend' of github.com:vivoportal/v2 into feature/backend
Use ::getView() method
First added tab is sets as selected
Merge branch 'fix/tab-container-1-sets-as-selected' into feature/backend
Save action