proper singularization of "caches"
closes #739
changelog for 06532c15aacd485955bc5a423e7d5d929ae2d7bc
merge 06532c15aacd485955bc5a423e7d5d929ae2d7bc...ac3c3dae68f57a0aeef55d49b21b1f90d74936a7
merge forgotten 56102e29ddceefd850e2d44de004b17d219c7784
fix 7ee7284ab56ca4e7289ef0a5ab46ea83d5caf365