Change version calculation in setup.py to go with the new VERSION tuple

git-svn-id: http://code.djangoproject.com/svn/django/trunk@9107 bcc190cf-cafb-0310-a4f2-bffc1f526a37

Author: ubernostrum

setup.py

@@ -66,11 +66,9 @@ def fullsplit(path, result=None):
         file_info[0] = '\\PURELIB\\%s' % file_info[0]
 
 # Dynamically calculate the version based on django.VERSION.
-version_tuple = __import__('django').VERSION
-if version_tuple[2] is not None:
-    version = "%d.%d_%s" % version_tuple
-else:
-    version = "%d.%d" % version_tuple[:2]
+version = __import__('django').get_version()
+if u'SVN' in version:
+    version = ' '.join(version.split(' ')[:-1])
 
 setup(
     name = "Django",