* remove excess brace on settings > subscription screen
* prevent User icon > Settings > Subscription page from crashing when subscription has termination date
* stop subscription modal from pitching subscription to a subscriber
* change placeholder text from Username to Login Name for consistency with other login/register forms
* fix test for POST-tasks_user -- streak and dateCompleted weren't being tested correctly
* prevent tag selector from appearing in edit screen for a challenge's own tasks
* restore Restore Streak when editing a user's Dailies (including their own copies of Challenge and Group Plan Dailies)
* remove failing streak test