update Pipfile

Author: tony

Pipfile

@@ -7,11 +7,11 @@ name = "pypi"
 "e1839a8" = {path = ".", editable = true}
 
 [dev-packages]
-pytest = "==3.5.0"
+pytest = "==3.5.1"
 docutils = "==0.14"
-alagitpull = "==0.0.19"
-releases = "==1.4.1"
-Sphinx = "==1.7.2"
+alagitpull = "==0.0.20"
+releases = "==1.4.2"
+Sphinx = "==1.7.4"
 isort = "==4.3.4"
 "flake8" = "==3.5.0"
 vulture = "==0.26"