Synch tox tests requirements with mainline

Docker-DCO-1.1-Signed-off-by: Mangled Deutz <[email protected]> (github: dmp42)

Author: Mangled Deutz

tests/requirements-tox.txt

@@ -1,10 +1,10 @@
-Flask==0.9
+Flask==0.10.1
 Flask-cors==1.3.0
-requests==1.2.0
-rsa==3.1.2
-PyYAML==3.10
+requests==2.3.0
+rsa==3.1.4
+PyYAML==3.11
 blinker==1.3
-gevent==0.13.8
-sqlalchemy==0.9.2
-bugsnag==1.3.1
+gevent==1.0.1
+sqlalchemy==0.9.4
+bugsnag==2.0.1
 gunicorn==18.0