[HOTFIX] Changed breadcrumb query to raise performance of load node

__Tasks:__

- [x] test coverage
- [ ] gather feedback for my changes


__Informations:__

| Q             | A
| ------------- | ---
| Tests pass?   | yes
| Fixed tickets | https://github.com/sulu-cmf/sulu/issues/231
| BC Breaks     | none
| Doc           | none
performance boost came from the sql statement! the filter for "main" from seems to be much faster (100 times) then filter on join table