If the password is enforced we can't create a link share right away but
just show the password field. Untoggling the link sharing should not try
to remove the share.
* Added unit test
We used to display the response from the server. Which is in non ISO8601
format. Now this is weird since the datepickers shows us 'DD-MM-YYYY'
once a date is chosen.
Now use momentJS to properly format the date.
* Unit tests updated
