[Routing][FrameworkBundle] Deprecated the apache dumper
feature #9980 [Routing][FrameworkBundle] Deprecated the apache dumper (jakzal)

This PR was squashed before being merged into the 2.5-dev branch (closes #9980).

Discussion
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[Routing][FrameworkBundle] Deprecated the apache dumper

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | yes
| Tests pass?   | yes
| Fixed tickets | #9652
| License       | MIT
| Doc PR        | https://github.com/symfony/symfony-docs/pull/3446

Commits
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6258cfa [Routing][FrameworkBundle] Deprecated the apache dumper