Add fstype arg to the mount examples

Needed fstype in the examples, since fstype is a required argument for
mount.
file: prevent replace failure when overwriting empty directory with hard/link (force=yes)
Adding the following Test Coverage:

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.
Merge pull request #8329 from rdolejsi/devel

file: prevent replace failure when overwriting empty directory with hard or soft link on force=yes
Move splitter to module_utils so modules can use it and fix command arg splitting

Fixes #8338
Merge branch 'integration_mysql_user' of https://github.com/wrosario/ansible into wrosario-integration_mysql_user
Merge branch 'wrosario-integration_mysql_user' into devel
Merge pull request #8283 from ps-jay/sys_mount_fstype_doc

Add fstype arg to the mount examples
service: test properly whether systemd is running

Use a pure Python reimplementation of the [sd_booted(3)][1] function
from [systemd v210][2].

[1]: http://www.freedesktop.org/software/systemd/man/sd_booted.html
[2]: http://cgit.freedesktop.org/systemd/systemd-stable/tree/src/libsystemd/sd-daemon/sd-daemon.c?id=v210#n465