Initialize Flycheck keymap earlier

Autoloading handles the rest
Yet more evil-mode stuff

- Automatically exit insert state when a frame loses focus
- Add text objects for defuns (on "d") and symbols (on "y")
- Move things around
Add basis/dired-open-files and map it to "e"

Remove basis/open-these-files. Opening the file that's already open
turned out not to be useful. Surprising, right?