[ANN] Refactor Popup plugin

Available in Plugin Manager.

Sort of a toy plugin, mostly useful for anyone who uses the mouse for actions.
Lets you map a shortcut for popping up the Refactor menu. Source code is embedded
in the jar file, so if nothing else it can be an educational experience.
--

Erb

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"Most of you are familiar with the virtues of a programmer.
There are three, of course: laziness, impatience, and hubris."
- Larry Wall
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