UI for setting options
Update README.md
Save settings cursor position

Also, comments for alternate feedkey bindings
Option to change global hotkey in settings
make hotkey setting global
Allow plane to have entries not in ErrorCheck
make keyboard command completion obvious
obvious bug in initialization settings
Emphasize globalness of hotkey

Also, don't automatically print save / cancel message in settingspager
Another deepcopy -- necessary??
Put global hotkey settings in Readme
make sure hotkey works on :so and as plugin
Update README.md