updated dependencies

Author: Devin McGloin

requirements.txt

@@ -1,16 +1,13 @@
-atomicwrites==1.1.5
-attrs==18.1.0
-certifi==2018.4.16
+atomicwrites==1.2.1
+attrs==18.2.0
+certifi==2018.10.15
 chardet==3.0.4
 idna==2.7
-more-itertools==4.2.0
-pkginfo==1.4.2
-pluggy==0.6.0
-py==1.5.4
+more-itertools==4.3.0
+pluggy==0.8.0
+py==1.7.0
 PyJWT==1.6.4
-pytest==3.6.3
-requests==2.19.1
-requests-toolbelt==0.8.0
+pytest==3.9.3
+requests==2.20.0
 six==1.11.0
-tqdm==4.24.0
-urllib3==1.23
+urllib3==1.24