Fixed a bug in the LRUCache which was causing a hang when the elements were being removed.
Fixed a bug in the LRUCache which was causing a hang when the elements were being removed.

davidsminor/cortex,goddardl/cortex,davidsminor/cortex,danieldresser/cortex,hradec/cortex,hradec/cortex,lento/cortex,davidsminor/cortex,davidsminor/cortex,hradec/cortex,goddardl/cortex,danieldresser/cortex,lento/cortex,appleseedhq/cortex,danieldresser/cortex,appleseedhq/cortex,danieldresser/cortex,lento/cortex,appleseedhq/cortex,goddardl/cortex