Merge branch 'add-docker-api-version-parameter' of https://github.com/jmoretti/ansible into jmoretti-add-docker-api-version-parameter

This reverts commit 14a99669.

Conflicts:

	lib/ansible/module_utils/facts.py

Make pip dry run work better for the common case

implemented the missing "command" option, defaults to "install"...

mysql_db module: Escape "_" in database name for "SHOW DATABASES" statement

Setup module: Additional facts when using ansible with Linux on System z

Added cross-platform uptime fact

Expand variables in configuration files, take two

Raise exception if "file_name" isn't passed to bin/ansible-vault

Merge branch 'docker-add-net-parameter' of https://github.com/discordianfish/ansible into discordianfish-docker-add-net-parameter

added missing force flag on mkfs commandline

Ansible inventory file location fixed

fix incorrect secondary ip handling, fixes #7724

Update user mailing list link in faq.rst

(serial_pct)/100.0 is a typo - the parentheses should be around the entire percentage calculation, which makes much more sense when multiplying by the number of hosts (luckily BODMAS prevailed).

playbook: permit the serial attribute to be a pecentage string as well as well as a straight integer