* added account navigation menu, copied and adapted from www
* fixed css
* support for login menu, registration menu from www
* Dropdown replaced with MenuBarMenu, override www css in menus
* render and style login dropdown via function from www
* moved menu styling from menu itself to menu bar
* refactoring menu components and containers
* refactor and restyle account nav menu
* cleaned up cruft and css per rschamp's review of PR 3070