Hyphenate "class-based"

makes it more readable

docs/api.rst

@@ -476,7 +476,7 @@ Signals
 
 .. _blinker: http://pypi.python.org/pypi/blinker
 
-Class Based Views
+Class-Based Views
 -----------------
 
 .. versionadded:: 0.7

docs/extensiondev.rst

@@ -148,7 +148,7 @@ classes:
     a remote application that uses OAuth.
 
 What to use depends on what you have in mind.  For the SQLite 3 extension
-we will use the class based approach because it will provide users with a
+we will use the class-based approach because it will provide users with a
 manager object that handles opening and closing database connections.
 
 The Extension Code
@@ -203,7 +203,7 @@ So here's what these lines of code do:
 5.  Finally, we add a `get_db` function that simplifies access to the context's
     database.
 
-So why did we decide on a class based approach here?  Because using our
+So why did we decide on a class-based approach here?  Because using our
 extension looks something like this::
 
     from flask import Flask

docs/views.rst

@@ -23,7 +23,7 @@ database and renders into a template::
 
 This is simple and flexible, but if you want to provide this view in a
 generic fashion that can be adapted to other models and templates as well
-you might want more flexibility.  This is where pluggable class based
+you might want more flexibility.  This is where pluggable class-based
 views come into place.  As the first step to convert this into a class
 based view you would do this::
 
@@ -70,7 +70,7 @@ this by itself is not helpful, so let's refactor the code a bit::
             return User.query.all()
 
 This of course is not that helpful for such a small example, but it's good
-enough to explain the basic principle.  When you have a class based view
+enough to explain the basic principle.  When you have a class-based view
 the question comes up what `self` points to.  The way this works is that
 whenever the request is dispatched a new instance of the class is created
 and the :meth:`~flask.views.View.dispatch_request` method is called with