Remove dependency on ServerUrl helper from controller
Remove dependency on ServerUrl helper from controller

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