fixed ImagineLoader - cache prefix was not used in urls
fixed ImagineLoader - cache prefix was not used in urls
prolixtechnikos/LiipImagineBundle,liip/LiipImagineBundle,prolixtechnikos/LiipImagineBundle,liip/LiipImagineBundle,prolixtechnikos/LiipImagineBundle,robfrawley/LiipImagineBundle,robfrawley/LiipImagineBundle