Update dependencies

requirements.txt

@@ -1,13 +1,13 @@
 cornice==0.16.2
-gunicorn==19.1.1
+gunicorn==19.6
 pyramid==1.5
 WebOb==1.4.1
-requests==2.10
-simplejson==3.4
-SQLAlchemy==0.9.4
-unittest2==0.5.1
+requests==2.13
+simplejson==3.10
+SQLAlchemy==1.1.5
+unittest2==1.1
 zope.component==4.2.1
-configparser==3.5.0b2
+configparser==3.5
 mozsvc==0.9
 https://github.com/mozilla-services/tokenserver/archive/1.2.23.zip
-https://github.com/mozilla-services/server-syncstorage/archive/f0190c0eb730e2cd1fbaf89f95c50114b6289042.zip
+https://github.com/mozilla-services/server-syncstorage/archive/1.6.2.zip