Use `Backspace` to delete active region in insert mode

[rainstormstudio]

I found #574 but it was not replied.

Is it possible to use Backspace to delete selected region in insert mode? Shouldn't insert mode respect the default emacs behavior?

[rainstormstudio]

The following is a quick hack; not sure if it's the right way tho.

  (add-hook 'meow-insert-enter-hook (lambda() (setq delete-active-region t)))
  (add-hook 'meow-insert-exit-hook (lambda() (setq delete-active-region nil)))