SERVER-1153: some very simple db ops work
SERVER-13635: move DatabaseCatalogEntry instantiation out of Database
SERVER-13635: correct file for MMAPV1DatabaseCatalogEntry
SERVER-13635: MMAP1DatabaseCatalogEntry to MMAPV1DatabaseCatalogEntry
remove unused option for hints
SERVER-13635: remove all non storage callers to flushAll
SERVER-13635: remove path concept from DatabaseHolder, and move repair and listDatabase into storageEngine