Add wheel to dev requirements.

diff --git a/requirements.txt b/requirements.txt
index c88bf435e4a3da8c9f38e782121a25bdd93e2333..2bedd65ee03e2d4e8ed2f32e8fc2b99bb83dc87d 100644 (file)
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,4 @@
 py==1.4.12
 pytest==2.3.4
-invoke==0.2.0
\ No newline at end of file
+invoke==0.2.0
+wheel