support Varnish in configuration blocks
Improve readability
minor #4306 Improve readability (ifdattic)

This PR was merged into the 2.3 branch.

Discussion
----------

Improve readability

| Q             | A
| ------------- | ---
| Doc fix?      | yes
| New docs?     | no
| Applies to    | 2.3
| Fixed tickets |

Commits
-------

a715baf Improve readability
minor #4287 support Varnish in configuration blocks (xabbuh)

This PR was merged into the 2.3 branch.

Discussion
----------

support Varnish in configuration blocks

To be able to use them, fabpot/sphinx-php#20 has to be merged first. After that, the submodule reference has to be updated as well with this pull request.

@dbu @thierrymarianne Is Ruby the language to choose to get proper syntax highlighting?

Commits
-------

f2bf980 support Varnish in configuration blocks
Added config example for Varnish 4.0