Rename methods and members containing the reserved C++ delete keyword to destroy#85

sjperkins wants to merge 6 commits intoredis:mainredis/librdb:mainfrom

sjperkins:rename-RdbxRespWriter.delete-to-RdbxRespWriter.closesjperkins/librdb:rename-RdbxRespWriter.delete-to-RdbxRespWriter.closeCopy head branch name to clipboard