update a bunch of references to the django tutorial to tell ppl to us…

…e the 1.11 version

chapter_philosophy_and_refactoring.asciidoc

@@ -350,7 +350,8 @@ HTML:footnote:[Some people like to use another subfolder named after the app
 (i.e., 'lists/templates/lists') and then refer to the template as
 'lists/home.html'.  This is called "template namespacing". I figured it was
 overcomplicated for this small project, but it may be worth it on larger
-projects.  There's more in the http://bit.ly/1iXxWZL[Django tutorial].]
+projects.  There's more in the
+https://docs.djangoproject.com/en/1.11/intro/tutorial03/#write-views-that-actually-do-something[Django tutorial].]
 
 [role="sourcecode"]
 .lists/templates/home.html

chapter_post_and_database.asciidoc

@@ -905,7 +905,7 @@ Django has many other field types, like `IntegerField`, `CharField`,
 `DateField`, and so on.  I've chosen `TextField` rather than `CharField` because
 the latter requires a length restriction, which seems arbitrary at this point.
 You can read more on field types in the Django
-http://bit.ly/1slDAGH[tutorial]
+https://docs.djangoproject.com/en/1.11/intro/tutorial01/#creating-models[tutorial]
 and in the
 https://docs.djangoproject.com/en/1.11/ref/models/fields/[documentation].
 

part1.asciidoc

@@ -21,7 +21,9 @@ We'll be using Django, the Python world's most popular web framework
 a time, and provide lots of links to further reading.  If you're a total
 beginner to Django, I thoroughly recommend taking the time to read them. If
 you find yourself feeling a bit lost, take a couple of hours to go through
-the official Django tutorial, and then come back to the book.
+the official Django tutorial (make sure to use the
+https://docs.djangoproject.com/en/1.11/intro/tutorial01/[1.11 version]) , and
+then come back to the book.
 
 You'll also get to meet the Testing Goat...
 

part2.asciidoc

@@ -29,20 +29,21 @@ to do your own reading around when you start to apply these topics in "real
 life".
 
 For example, if you weren't familiar with Django before starting on the book,
-you may find that taking a little time to run through the official Django 
-tutorial at this point would complement what you've learned so far nicely,
+you may find that taking a little time to run through the 
+https://docs.djangoproject.com/en/1.11/intro/tutorial01/#creating-models[official Django tutorial]
+at this point would complement what you've learned so far nicely,
 and will leave you more confident with the Django stuff over the next few
 chapters, so you can focus on the core concepts.
 
 ////
 IDEA:
-TIP: I've heard from readers (usually who had only just started learning web
-    development), saying they got impatient at this point; they decided to stop
-    reading for now, and went off to get their hands dirty by building a real
-    app based on what they'd learned so far.  If that's you then great!
-    Come back to this book in 6 months' time when you've earned a few bruises
-    from the real world, and you'll probably get even more out of the rest of
-    the book.
+TIP: I've heard from readers (especially those who had only just started
+    learning web development), saying they got impatient at this point; they
+    decided to stop reading for now, and went off to get their hands dirty by
+    building a real app based on what they'd learned so far.  If that's you
+    then great! Come back to this book in 6 months' time when you've earned a
+    few bruises from the real world, and you'll probably get even more out of
+    the rest of the book.
 ////
 
 Oh, but there's lots of fun stuff coming up!  Just you wait!

pre-requisite-installations.asciidoc

@@ -82,7 +82,8 @@ the book, and taking a look at a Django tutorial.
 https://tutorial.djangogirls.org/[DjangoGirls] is the best, most
 beginner-friendly tutorial I know of.  The
 https://docs.djangoproject.com/en/1.11/intro/tutorial01/[official tutorial]
-is also excellent for more experienced programmers.
+is also excellent for more experienced programmers (make sure you follow the
+1.11 tutorial rather than a 2.x one though).
 
 Read on for instructions on installing Django.