Merge branch 'release-1.2.0'
Master should not have a dev tag
Merge branch 'develop'

Conflicts:
	setup.cfg
Merge branch 'release-1.2.1'
Merge branch 'release-1.2.2'
Merge branch 'release-1.2.3'
Merge branch 'release-1.3.0'
Merge branch 'hotfix-docs'

Conflicts:
	setup.cfg
Merge branch 'release-1.4.0'
Merge branch 'release-1.4.1'
Merge branch 'release-1.4.2'
Adds simples constants to `xoutil.datetime` for testing	weekdays
Algo simple en "mp.py".
Changes a probably confunsing name in the implementation of traverse.
Merge remote-tracking branch 'gitlab/develop' into develop
Fix some minor syntax problems with PEP-8
Some minor syntax changes.
Merge branch 'develop' of /media/manu/med-gnu/git/xoutil into develop
Protects againts None
Fixes bug in smart_copy when the default is a positional arg and is None.

According to the docstring, None could be the last positional argument for the
`defaults` and should behave just like passing False.