On Fedora 22 and later, yum is deprecated and dnf is installed by
default. However, the detection do not seems to take this in account,
and always use yum, even when yum cli is just a wrapper to tell "use
dnf", as this is the case on F22 and later ( see package dnf-yum ).

As dnf is not installed by default, except on F22, this shouldn't
break anything.

Fix the filename in error message (pylint)

Fix various pylint issues ( missing import and wrong variable names )

Fix the name of the exported class ( pylint )

fixed indent when looking at delegate_to vars

(We have a jenkins build that creates a [testenv:jenkins] so it needs
there to be a default value

Rename the import, since the directory was renamed for v2

Add missing imports. They are used later in mkdtmp, needed by action plu...

Add/correct missing imports for AnsibleError in v2 lookup plugins

Fix the exception name ( AnsibleParserError, not AnsibleParsingError )

Updated the tox.ini file to run multiple ansible versions.

Add a import for 'builtins' module, used in CleansingNodeVisitor.

This was previously done by ./lib/ansible/utils/__init__.py, but
this code is no longer here in v2 anymore. And since the module
got renamed in python3 to builtins ( https://docs.python.org/3/library/builtins.html ),
we have to use six.

This reverts commit 0345b675.

Purpose: so that devs can use tox to run v1 or v2 of ansible with various versions of python.
For example `tox -e py27-v2 will run python2.7 on v2. Currently, only py26 and py27 are run on v1 when
running just `tox` so that we aren't breaking builds.

Missing import for ansible.errors (pylint)

Do not import all ansible errors and fix the exception raised

Pylint warning, the method _warning is called warning

Pylint show a error "no deprecations variable"

Add another error, who seems to be all over the place

Add back AnsibleFileNotFound ( used in connection plugins )