Changing to stable debian (wheezy).

Therefore it compiles agains more common version of GLIBC.

Now works out of the box on Debian wheezy, centos:centos6 and other stable
Of course it works on new distributions. Tested with:
    debian:jessie and
    ubuntu:14.04

Signed-off-by: Alexander Holbreich <alexander@holbreich.org>

Conflicts:
	Dockerfile

Author: aholbreich

Dockerfile

@@ -1,6 +1,5 @@
-FROM ubuntu:14.04
-RUN apt-get update -qq && apt-get install -qy python python-pip python-dev git
-
+FROM debian:wheezy
+RUN apt-get update -qq && apt-get install -qy python python-pip python-dev git && apt-get clean
 WORKDIR /code/
 
 ADD requirements.txt /code/