K 10 svn:author V 7 attilio K 8 svn:date V 27 2012-06-09T12:25:30.670145Z K 7 svn:log V 346 Introduce a new tree for dealing with cached pages separately and remove the RED/BLACK concept. This is based on the assumption that path-compressed tries will be small and fast enough that a separate trie for cached pages will make sense and will leave the trie code simple enough (along with removing a lot of differences in the userend code). END