Revert "generic cache wrapper per issue #126; not fully tested"
Revert "generic cache wrapper per issue #126; not fully tested"

This reverts commit 50e5ae2eb0447a3022ce68b4686ff645496f897a.

whosonfirst/whosonfirst-www-spelunker,whosonfirst/whosonfirst-www-spelunker,whosonfirst/whosonfirst-www-spelunker,whosonfirst/whosonfirst-www-spelunker