Removed unnecessary dependencies.

Dependencies which are not required on a production environment. 

Changed mysql-client to mysqlclient for python 3 support and the development of mysql-client has been stopped.

Author: spil-rkoopmans

requirements.txt

@@ -1,12 +1,10 @@
 Jinja2==2.7.1
 MarkupSafe==0.18
-MySQL-python==1.2.5
+mysqlclient==1.3.6
 Pygments==1.6
 Sphinx==1.2b1
 argparse==1.2.1
 docutils==0.11
 py==1.4.15
 pystatsd==0.1.10
 tox==1.6.0
-virtualenv==1.10.1
-wsgiref==0.1.2