Make {forward,backward}-word more emacs like.

Strings of punctuation aren't considered words.
Emacs-like word detection for kill-word and backward-kill-word.
Merge branch 'master' into words

* master:
  Map 'alt-q' to 'autoflow:reflow-paragraph'

Conflicts:
	keymaps/atomic-emacs.cson
Merge pull request #12 from oggy/words

Emacs-like word movement