fix trailing whitespace
add new ipython_console_highlighting

The version from:

http://code.google.com/p/pykml/source/browse/docs/sphinxext/ipython_console_highlighting.py?spec=svn5503157a8848914b57b071442d6994dee7314804&r=5503157a8848914b57b071442d6994dee7314804

Supress the warning about setup we get
description of some additional useful ipython tips and tricks
add history to ipython features discussed
Merge branch 'misc'

* misc:
  add new ipython_console_highlighting
  fix trailing whitespace
Merge branch 'upgrade/ipython'

* upgrade/ipython:
  add history to ipython features discussed
  description of some additional useful ipython tips and tricks