Added a small script unchecking the clear box after a wrapped input is edited.
Note: Starting global declaration, and the somewhat ugly jQuery call are for JSLint.
Also written a class comment for the widget wrapper and cleaned up some Flake8 errors.
Merge branch 'feature/no-empty-string-fallback-for-nullable' into develop
Set self to something in the replace_orig_field doctest, so PyFlakes doesn't complain.
Merge branch 'feature/no-empty-string-fallback-for-nullable' into develop