Increased latest version to 2.1.5b0 [skip ci]

README.rst

 .. vim: set fileencoding=utf-8 :
 .. Mon 15 Aug 2016 09:46:19 CEST
 
-.. image:: http://img.shields.io/badge/docs-v2.1.4-yellow.svg
-   :target: https://www.idiap.ch/software/bob/docs/bob/bob.learn.libsvm/v2.1.4/index.html
+.. image:: http://img.shields.io/badge/docs-stable-yellow.svg
+   :target: https://www.idiap.ch/software/bob/docs/bob/bob.learn.libsvm/stable/index.html
 .. image:: http://img.shields.io/badge/docs-latest-orange.svg
    :target: https://www.idiap.ch/software/bob/docs/bob/bob.learn.libsvm/master/index.html
-.. image:: https://gitlab.idiap.ch/bob/bob.learn.libsvm/badges/v2.1.4/build.svg
-   :target: https://gitlab.idiap.ch/bob/bob.learn.libsvm/commits/v2.1.4
-.. image:: https://gitlab.idiap.ch/bob/bob.learn.libsvm/badges/v2.1.4/coverage.svg
-   :target: https://gitlab.idiap.ch/bob/bob.learn.libsvm/commits/v2.1.4
+.. image:: https://gitlab.idiap.ch/bob/bob.learn.libsvm/badges/master/build.svg
+   :target: https://gitlab.idiap.ch/bob/bob.learn.libsvm/commits/master
+.. image:: https://gitlab.idiap.ch/bob/bob.learn.libsvm/badges/master/coverage.svg
+   :target: https://gitlab.idiap.ch/bob/bob.learn.libsvm/commits/master
 .. image:: https://img.shields.io/badge/gitlab-project-0000c0.svg
    :target: https://gitlab.idiap.ch/bob/bob.learn.libsvm
 .. image:: http://img.shields.io/pypi/v/bob.learn.libsvm.svg

version.txt

-2.1.4
+2.1.5b0
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