Squashed 'zsh/prezto/' changes from 4abbc557..d22effbf
Squashed 'zsh/prezto/' changes from 4abbc557..d22effbf

d22effbf editor: allow alt+arrow keys for word movement (#1688)

git-subtree-dir: zsh/prezto
git-subtree-split: d22effbf856427b281b455a7419edfdd67aab3ce

skjerven/dotfiles,skjerven/dotfiles,skjerven/dotfiles