refs #7861 - remove trailing whitespace
fixes #7907 - Allow images from gravatar on secure headers
Refs #7587 -  Refactor password confirmation

* confirmation status is now linked to password field
* extracted additional missing strings
* simplified jquery selectors
* switched to onKeyUp built in event
* hide progress bar by default
* fixed minor css
* handle empty pw/confirmation
* moved javascript/stylesheet into partial instead of new/edit
* moved inline js to onContentLoad event.
fixes #7372 - API v2 - accept PUT/POST requests with wrapped root node to add/remove has_many associations of child nodes