[#44] Added test demonstrating new desired behavior
[#44] Added test demonstrating new desired behavior

- Allow resources to return `ApiProblem` objects and short-circuit
  behavior

vixriihi/zf-jsonld,Wilt/zf-hal,rstgroup/zf-api-problem,weierophinney/zf-api-problem,Wilt/zf-rest,nocvp/zf-rest,rstgroup/zf-api-problem,weierophinney/zf-api-problem,nobesnickr/zf-hal,Cube-Solutions/zf-hal,weierophinney/zf-api-problem,Cube-Solutions/zf-hal,Cube-Solutions/zf-hal,rstgroup/zf-api-problem,nocvp/zf-api-problem