Rebasing against develop (COmanage#71)

* Fix "Using $this when not in object context" error in StringUtilities.php (NOJIRA) (COmanage#67)

* Addition of Person Overview/Canvas. Commit also includes reworking of subnavigation for a Person view, VueJS starter components, updates for AJAX API access, and a minor fix to textarea rendering. (CFM-205)

* Revert changes to edit() and view() function signatures. (CFM-205)

* Post rebase cleanup; pass flash messages to subnavigation

* Output all available mvea text in Vue.js components (CFM-205)

* Allow User with Session to by pass basic auth when making ajax requests (COmanage#69)