Updated chapter02.rst for Django 1.4.1

Made changes for the Django 1.4.1 project layout change.
Incorporated Jacob's comments and more 1.4 changes

Incorporated Jacob's comments. Updated the 'Installing the "development" version' section to use Git as Django is versioned on Git and a few more 1.4 changes.
Add texinfo builder.
replace render_to_response with render

Replaced the render_to_response shortcut with render everywhere because
newer django code tends not to use render_to_response at all. Also
updated text where it refered to render_to_response arguments and the
use of RequestContext with render.
Merge pull request #6 from bon/master

Added texinfo builder
Merge pull request #4 from lgp171188/master

Updated chapter02.rst for Django 1.4.1
fix underline too long
Update chapter01.rst

The resource moved from http://www.diveintopython.org/ to http://www.diveintopython.net/
Merge pull request #8 from chrisco/patch-1

Update the link to Dive into Python.
Merge pull request #7 from RaphaelKimmig/master

Replaced render_to_response with render
Removed references to 'trunk'. Updated python to 2.7 and Django to 1.4.2
Merge pull request #9 from lgp171188/master

Removed all references to "trunk"; updated Django to 1.4.2 and Python to 2.7
Update Django version number in Chpt 1.  We will eventually completely update the book to version 1.4
Remove whitespace at end of lines, wrap lines at 80 characters.
Update note about python 3.0 to say that Django 1.5 will support it.  No longer encourage new python developers to ignore 3.0.
Update example to reference python 2.7, not 2.4
Update another 2.4=>2.7.  Remove sentence that does not make sense with git; revision numbers no longer increase monotomically like they did with SVN.
Remove references to "trunk" and replace them with "development version" as started by Guruprasad
Django is now at 1.4.2
This paragraph sounded like it was still talking about SVN, so I used the term "commit" instead of "changeset".  Also, new developers may not know what it means to "find your HEAD commit," so I modified the sentence to be more clear.