Fixed router to create its image through atlantis-aquarium

We are getting some error related to `zookeeper` while building `router` image. We tried to understand it but couldn't find the reason.
Error summary as follows:

```
./bin/router: error while loading shared libraries: libzookeeper_mt.so.2: cannot open shared object file: No such file or directory
./bin/router: error while loading shared libraries: libzookeeper_mt.so.2: cannot open shared object file: No such file or directory
....
```

Full log for `router`: https://gist.github.com/budhrg/f7b33cb2fdca7078307c

Please review.