update flask to 0.12.4

Author: piontec

readme.md

@@ -1,6 +1,6 @@
 # docker enforcer
-[![Build Status](https://travis-ci.org/piontec/docker-enforcer.png?branch=master)](https://travis-ci.org/piontec/docker-enforcer)
-[![Coverage Status](https://coveralls.io/repos/github/piontec/docker-enforcer/badge.svg?branch=master)](https://coveralls.io/github/piontec/docker-enforcer?branch=master)
+[![Build Status](https://travis-ci.org/piontec/docker-enforcer.png?branch=develop)](https://travis-ci.org/piontec/docker-enforcer)
+[![Coverage Status](https://coveralls.io/repos/github/piontec/docker-enforcer/badge.svg?branch=develop)](https://coveralls.io/github/piontec/docker-enforcer?branch=develop)
 
 ## Why?
 Docker enforcer audits containers running on a shared docker host. The aim of docker enforcer is to

requirements.txt

@@ -2,7 +2,7 @@ appdirs==1.4.3
 click==6.7
 docker==2.2.1
 docker-pycreds==0.2.1
-Flask==0.12.1
+Flask==0.12.4
 itsdangerous==0.24
 Jinja2==2.9.6
 MarkupSafe==1.0