Merge pull request #130 from bobsilverberg/req

Update requirements to pick up py.test 2.3.5 which will allow us to use rerunfailures again

requirements.txt

@@ -6,9 +6,9 @@ UnittestZero
 certifi==0.0.8
 chardet==1.0.1
 execnet==1.1
-py==1.4.12
-pytest==2.3.4
-pytest-mozwebqa==1.1
+py==1.4.15
+pytest==2.3.5
+pytest-mozwebqa==1.1.1
 pytest-xdist==1.8
 requests==0.13.2
 selenium