Revert "Revert "DOC: Remove vendored IPython.sphinext (pandas-dev#18193)" (pandas-dev#18320)"

This reverts commit d6049a0.

Author: jorisvandenbossche

.gitignore

@@ -107,4 +107,4 @@ doc/build/html/index.html
 doc/tmp.sv
 doc/source/styled.xlsx
 doc/source/templates/
-env/
+doc/source/savefig/

doc/source/conf.py

@@ -56,9 +56,8 @@
               'sphinx.ext.extlinks',
               'sphinx.ext.todo',
               'numpydoc',
-              'ipython_sphinxext.ipython_directive',
-              'ipython_sphinxext.ipython_console_highlighting',
-              'IPython.sphinxext.ipython_console_highlighting',  # lowercase didn't work
+              'IPython.sphinxext.ipython_directive',
+              'IPython.sphinxext.ipython_console_highlighting',
               'sphinx.ext.intersphinx',
               'sphinx.ext.coverage',
               'sphinx.ext.mathjax',

doc/source/whatsnew/v0.7.3.txt

@@ -22,7 +22,7 @@ New features
    from pandas.tools.plotting import scatter_matrix
    scatter_matrix(df, alpha=0.2)
 
-.. image:: _static/scatter_matrix_kde.png
+.. image:: savefig/scatter_matrix_kde.png
    :width: 5in
 
 - Add ``stacked`` argument to Series and DataFrame's ``plot`` method for
@@ -32,14 +32,14 @@ New features
 
    df.plot(kind='bar', stacked=True)
 
-.. image:: _static/bar_plot_stacked_ex.png
+.. image:: savefig/bar_plot_stacked_ex.png
    :width: 4in
 
 .. code-block:: python
 
    df.plot(kind='barh', stacked=True)
 
-.. image:: _static/barh_plot_stacked_ex.png
+.. image:: savefig/barh_plot_stacked_ex.png
    :width: 4in
 
 - Add log x and y :ref:`scaling options <visualization.basic>` to