lispy.el (lispy--normalize-1): simplify

* lispy.el (lispy--normalize-1): Use `insert' instead of
  `lispy--insert-1' again.
lispy.el (lispy--fetch-tags-projectile): add a require
lispy.el (lispy--insert-1): simplify

* lispy.el (lispy--insert-1): Exit comment after filling.
lispy.el (lispy--fetch-tags): simplify

* lispy.el (lispy--fetch-tags): Don't fetch this file tags when `path'
  is supplied.
lispy.el (lispy--normalize-1): simplify

* lispy.el (lispy--normalize-1): Remove buffer modification check.
lispy.el (lispy-setup-new-bindings): make "D" opposite of "F"