Merge pull request #612 from django-compressor/fix-tests-coffin-breakage

Fix tests, compressor is not compatible with Coffin 2.0.0.

requirements/tests.txt

@@ -6,5 +6,5 @@ jinja2
 lxml
 BeautifulSoup
 unittest2
-coffin
+coffin<2.0.0
 jingo

tox.ini

@@ -9,7 +9,7 @@ two =
     BeautifulSoup
     unittest2
     jingo
-    coffin
+    coffin<2.0.0
 three =
     flake8
     coverage
@@ -19,7 +19,7 @@ three =
     lxml
     BeautifulSoup4
     jingo
-    coffin
+    coffin<2.0.0
 three_two =
     flake8
     coverage
@@ -29,7 +29,7 @@ three_two =
     lxml
     BeautifulSoup4
     jingo
-    coffin
+    coffin<2.0.0
 
 [tox]
 envlist =