Removed Docker production warnings

* Removed warnings.
* Removed inconsistent Community installation sections.
* Fixed all installation page descriptions.
* Removed old .inc files.

Docker-DCO-1.1-Signed-off-by: James Turnbull <james@lovedthanlost.net> (github: jamtur01)
Merge pull request #6053 from jamtur01/produpdate

Removed Docker production warnings
add integration test

Docker-DCO-1.1-Signed-off-by: Tibor Vass <teabee89@gmail.com> (github: tiborvass)
rename TestVolumeWithSymlink to TestCreateVolumeWithSymlink and remove run_tests folder

Docker-DCO-1.1-Signed-off-by: Tibor Vass <teabee89@gmail.com> (github: tiborvass)
expose unresolved path for volumes and resolve symlink in container.getResourcePath

Docker-DCO-1.1-Signed-off-by: Tibor Vass <teabee89@gmail.com> (github: tiborvass)
have getResourcePath return the error from FollowSymlinkInScope

Docker-DCO-1.1-Signed-off-by: Tibor Vass <teabee89@gmail.com> (github: tiborvass)