Branching 0.15.X to prepare the 0.15.0b1 release 

DOC: fix 2 covariance examples rst math markup. Some formulas in plot_mahalanobis_distances and plot_robust_vs_empirical_covariance were not correctly rendered by sphinx as some characters were not properly escaped. This is fixed by setting the docstrings as raw string using r""" There was also missing braces for the number of features and samples subscript.

REL: Release 0.14.1 Minor bug fix release to restore proper behavior of setup.py

0.14 release 

REL: 0.14a1 Release candidate for 0.14 

REL increased version number, added whatsnew 

website: fix for survey bar 

DOC updated commit counts. 

REL: 0.12.1 Bugfix release 

Debian release 0.12.0-1