lispy.el (lispy-pair): improve

* lispy-test.el (lispy-parens): Add test.
lispy.el (lispy-newline-and-indent-plain): improve for repls

Now it's possible to turn on `lispy-mode' in CIDER or SLIME repls.
lispy.el (lispy-raise): simplify
lispy.el (lispy-other-space): give `lispy-right' priorty

lispy-test.el (lispy-other-space): Add test.