deprecate DynamicRouter::match and cleanup interface usage

as far as possible without BC

An alternative to #116 without BC breaks for a released version. Once merged, i will update #116 as there will be conflicts - it has to stay open until we do a 2.0 version of this library.

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | #105
| License       | MIT
| Doc PR        | -


@dawehner i hope this is ok for you? RouterInterface would force the UrlMatcherInterface which makes no sense for a RequestMatcherInterface (symfony 2.0 BC legacy of symfony itself).

this interface was added in 1.3.0-RC1, thus never had a stable release...