Make copy, cut and paste events case insensitive.  Reported by Patrick K. O'Brien on idle-dev.
Make copy, cut and paste events case insensitive.  Reported by Patrick
K. O'Brien on idle-dev.

(Should other bindings follow suit?)

sk-/python2.7-type-annotator,sk-/python2.7-type-annotator,sk-/python2.7-type-annotator