MAINT: update copy_joblib script
ENH: update joblib to 0.7.1

2013-07-25
Gael Varoquaux

    MISC: capture meaningless argument (n_jobs=0) in Parallel

2013-07-09
Lars Buitinck

    ENH Handles tuples, sets and Python 3's dict_keys type the same as
    lists. in pre_dispatch

2013-05-23
Martin Luessi

    ENH: fix function caching for IPython
MAINT: misc change to copy_joblib

So that we are sure that .py files are not executables (if they are, the
tests are not run)