C-u in insert-state behaves like bash

C-u deletes to beginning of line
Map C-k to kill-line in evil-insert-state

More compatible with default readline shortcuts
Don't automatically save and restore my desktop

I explicitly save and load them when I need to and always start with a
'blank' Emacs.
Don't save dired buffers in desktop
Don't insert timestamp when org task marked DONE

Add the following line to a file to override this setting in that file:
-*- mode: org; org-log-done: t -*-
Use C-p and C-n to view previously run ex commands

C-p and C-n are more compatible with bash than M-p and M-n