toolbar button and menu actions which can clear the REUSE flag

This plugin provides a registered action, toolbar button and menu actions which can clear the REUSE flag preventing a file from being replaced.

The toolbar button, which looks like a "push pin", provides a visual indication that the currently active editor is REUSEable; the button is only enabled when the active editor is REUSEable.

In some situations the IDE/platform opens a file with the REUSE flag (see NetBeans API doc Line.ShowOpenType); files opened like this can be automatically replaced in an editor window by other files.

IDE REUSE examples: single stepping into a file, clicking on a stacktrace for goto source, jVi tag-stack operations.