The copyable text input widget (used for things like auto-generated IDs)

wasn't rendering properly. The major problem here is that Django changed

internally how things like the TextInput widget rendered. What was

happening is that even calling the superclass' render() method, it was

using self.template_name. This would render two copies of the copyable

text input widget template, one of which didn't have the correct

context. I've changed it to explicitly render the text input template.
We also had a CSS precedence issue which was causing the copy icon to be

rendered in blue. I've made the CSS rule for this icon to be a bit

higher priority so it doesn't get overridden.

Used the OAuth application edit form (which uses this widget in a

  couple different ways) and saw the correct result rather than having

  no text boxes and two copy icons.
Ran unit tests on all supported versions of Python.