Routing enhancements

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | yes
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | ---
| Fixed tickets | ---
| Refs tickets  | #1552
| License       | MIT
| Doc PR        | ---

This PR removes the previously added `CmfRoutingBundle` (which is not needed anymore) and adds the `I18nRoutingBundle` for multilingual routing. See the PR's files for further written documentation.
Additionally I wrote a MOST-based ZikulaRoutesModule beeing a new system module managing routing, which is added in #1721.

Instructions:
- git pull
- composer update
- go to the Extensions module
- install the ZikulaRoutesModule

**Todo**
- [x] expand documentation.
- [x] fix travis build.
- [x] https://github.com/Guite/MostGenerator/issues/596.
- [x] https://github.com/Guite/MostGenerator/issues/595.
- [x] Properly include ZikulaRoutesModule as system module.
- [x] Re-add default JMSI18nRoutingBundle settings to config.yml
- [x] and overwrite them in dynamic_config.yml.
- [ ] Try fresh installation **Blocked by #1704**
- [ ] Add upgrade process **will be done in another PR**