Add a recipe for `el-spice`

el-spice is a minor mode that adds nice-to-have functions for emacs-lisp
programming.
url: http://github.com/vedang/el-spice
Add a recipe for thingatpt+
Merge pull request #1428 from vedang/add-el-spice-recipe

Add a recipe for `el-spice`
add recipe for python-cell mode

Signed-off-by: Thomas Hisch <t.hisch@gmail.com>
Merge pull request #1430 from thisch/master

add recipe for python-cell mode