New recipe for gedit-mode

gedit-mode is a minor mode for emacs that makes it imitate the keybindings of GEdit. This is aimed at being a novice-friendly way to introduce users of GEdit (and other similar graphical text editors) to Emacs.

It's similar to viper mode, in the sense that it makes Emacs imitate some other, lesser editor, but it can also be thought of as the logical conclusion of cua-mode: it de-prefix-izes C-x and C-c and dedicates those keys to their CUA functions, along with implementing the rest of the standard keybindings found in most graphical desktop applications.