Bump version to 2.4.0.dev1

Author: acdha

setup.py

@@ -29,7 +29,7 @@
 
 setup(
     name='django-haystack',
-    version='2.4.0.dev0',
+    version='2.4.0.dev1',
     description='Pluggable search for Django.',
     author='Daniel Lindsley',
     author_email='[email protected]',