[doc, test] added build, coverage, doc, etc .. buttons on the README, add the...

[doc, test] added build, coverage, doc, etc .. buttons on the README, add the __init__.py in the script folder (for nosetest)

README.rst

 .. Guillaume HEUSCH <guillaume.heusch@idiap.ch>
 .. Wed 30 Mar 15:09:35 CEST 2016
 
+.. image:: http://img.shields.io/badge/docs-stable-yellow.png
+   :target: http://pythonhosted.org/bob.ip.skincolorfilter/index.html
+.. image:: http://img.shields.io/badge/docs-latest-orange.png
+   :target: https://www.idiap.ch/software/bob/docs/latest/bioidiap/bob.ip.skincolorfilter/master/index.html
+.. image:: https://travis-ci.org/bioidiap/bob.ip.skincolorfilter.svg?branch=master
+   :target: https://travis-ci.org/bioidiap/bob.ip.skincolorfilter?branch=master
+.. image:: https://coveralls.io/repos/bioidiap/bob.ip.skincolorfilter/badge.svg?branch=master
+   :target: https://coveralls.io/r/bioidiap/bob.ip.skincolorfilter?branch=master
+.. image:: https://img.shields.io/badge/github-master-0000c0.png
+   :target: https://github.com/bioidiap/bob.ip.skincolorfilter/tree/master
+.. image:: http://img.shields.io/pypi/v/bob.ip.skincolorfilter.png
+   :target: https://pypi.python.org/pypi/bob.ip.skincolorfilter
+.. image:: http://img.shields.io/pypi/dm/bob.ip.skincolorfilter.png
+   :target: https://pypi.python.org/pypi/bob.ip.skincolorfilter
+
+
 =================
 Skin Color Filter
 =================