Merge branch 'integration_mysql_user' of https://github.com/wrosario/ansible into wrosario-integration_mysql_user

Fixes #8338

file: prevent replace failure when overwriting empty directory with hard or soft link on force=yes

Use mysql_user module to create, delete users.
Update user password and ensure new password was updated for the correct user.
Assert user has access to multiple databases
Assert user creation, deleting using different user privilege and ensure privilege work correctly.

This reverts commit 2fda9bc7.

Fixes #8228

Fixes #8315

Breaks some test runs.

This reverts commit a9eef029.

Make sure to assign pyrax.cloudservers to cs. Fixes #8250

Wrap get_distribution_version() in the hostname module

Expand variables in configuration files

We wrap get_distribution_version() with a new function,
_get_distribution_version(), that returns `0` when the result is a string or
`None`.

This accounts for the case when get_distribution_version() returns a string,
and we try to compare it to a float. We do this in the hostname module instead
of the module snippets because other modules may want the real string
version.module snippets because other modules may want the real string version.

[Docs] Added another example to demonstrate unarchive module working entirely on a remote machine

Update mysql_user doc and example

Fix unsupported regexp parameter in assemble

Revert "Fix hostname when get_distribution_version() returns a string."

This reverts commit 08f97c0b.

Check at most 16 characters of the key. Fixes #7936

cron module: Use correct parameter name in error message.

Updates to the parameters of win_feature

Fix hostname when get_distribution_version() returns a string.

Support for OS X 10.10 DP3.

Bugfix: bulletproof unexpected_error_msg at gce.py

Fixed bug with environment path for homebrew_cask

acl module: now compares permissions correctly

e.g. $HOME. Fixes #6373.

Extended distributions list for hostname module

Fix extra newline at end of hostname for Fedora

This fixes a bug introduced by 138b45e3.
The hostname has an additional newline at the end which leads to the
state always being 'changed: true' even if the hostname is unchanged.

Implementations already present