move unminified js to external/js

and exclude it from MANIFEST, so it will not be in sdists,
only available in the repo / via release tag.

IPython/external/js/README

@@ -1,7 +1,7 b''
 We use minified versions of JQuery / jQueryUI and google-code-prettify in the Notebook.
 
-Some package managers require full versions alongside minified, and they can be
-dropped in here, if necessary.
+Some package managers require full versions alongside minified,
+and they can be dropped in here as necessary.
 
 origins of our minified js:
 prettify:  http://google-code-prettify.googlecode.com/files/prettify-small-1-Jun-2011.tar.bz2

MANIFEST.in

@@ -12,6 +12,7 b' graft scripts'
 # Load main dir but exclude things we don't want in the distro
 graft IPython
 prune IPython/deathrow
+prune IPython/external/js
 prune IPython/frontend/html/notebook/static/mathjax
 
 # Include some specific files and data resources we need