Update chapter09.rst

Updated naming of TEMPLATE_LOADERS from *.load_template_source to *.Loader
3 Python files listed, not 4, correcting typo in Ch.1
fixed: changed "append" to "prepend" (due to context)

The word "append" was used but the context example showed behavior of prepending: http://en.wiktionary.org/wiki/prepend

example: "book_set"
- chosen option: prepending "book" to "_set"
- alternative option: appending "_set" to "book"
fixed typo

Original:
All models automatically get a ``objects`` manager.
Fixed:
All models automatically get an ``objects`` manager.
ch06: fix app module path for import

Custom applications are on the same level with 'mysite', thus not
under 'mysite' directory.
Insert django admin static files and gave correct number of files

Fixed Chapter 6 - Activating the Admin Interface, Step #2, lines 66-67
Added upticks to 'django.contrib.staticfiles'
Minor fix in "What’s Next?" section in Chapter 2
Create djbfavicon.ico

Not sure if this site should use the same favicon. Pulled image URL from here-
https://code.djangoproject.com/ticket/3867#no1
__str__() replaces __unicode__() method in Python 3

The usage of __unicode__() needs to be updated accordingly.
Update chapter07.rst

Changing the import from mysite.books to books.
I am getting an ImportError that books doesn't exist if I use mysite.books
Fix urls.defaults deprecation
fix search-form example in chapter7
Update chapter04.rst

Make it compatible with the newer django. 
updated copy to reflect previous changes
updated user edit form to show new password field
updated error message form to show correct password field
updated path to books.models