Formally upgrade suport to Django 1.8-beta

README.md

@@ -34,7 +34,7 @@ There is a live example API for testing purposes, [available here][sandbox].
 # Requirements
 
 * Python (2.6.5+, 2.7, 3.2, 3.3, 3.4)
-* Django (1.4.11+, 1.5.6+, 1.6.3+, 1.7, 1.8-alpha)
+* Django (1.4.11+, 1.5.6+, 1.6.3+, 1.7, 1.8-beta)
 
 # Installation
 

docs/index.md

@@ -50,7 +50,7 @@ Some reasons you might want to use REST framework:
 REST framework requires the following:
 
 * Python (2.6.5+, 2.7, 3.2, 3.3, 3.4)
-* Django (1.4.11+, 1.5.6+, 1.6.3+, 1.7)
+* Django (1.4.11+, 1.5.6+, 1.6.3+, 1.7, 1.8-beta)
 
 The following packages are optional:
 

tox.ini

@@ -14,7 +14,7 @@ deps =
        django15: Django==1.5.6  # Should track minimum supported
        django16: Django==1.6.3  # Should track minimum supported
        django17: Django==1.7.2  # Should track maximum supported
-       django18alpha: https://www.djangoproject.com/download/1.8a1/tarball/
+       django18alpha: https://www.djangoproject.com/download/1.8b1/tarball/
        -rrequirements/requirements-testing.txt
        -rrequirements/requirements-optionals.txt