chore(requirements): updating dependencies for vulnerabilities

Author: Cryptophobia

rootfs/requirements.txt

@@ -1,6 +1,6 @@
 # Deis controller requirements
 backoff==1.4.3
-Django==1.11.4
+Django==1.11.16
 django-auth-ldap==1.2.15
 django-cors-middleware==1.3.1
 django-guardian==1.4.9
@@ -17,7 +17,7 @@ packaging==16.8
 pyasn1==0.3.2
 psycopg2==2.7.3
 pyldap==2.4.37
-pyOpenSSL==17.2.0
+pyOpenSSL==17.5.0
 pytz==2017.2
-requests==2.18.4
+requests==2.19.1
 requests-toolbelt==0.8.0