ipython history trim: added--keep=<N>as an alias for the more verbose--HistoryTrim.keep=<N>- new
ipython history clearsubcommand, which is the same as the newly supportedipython history trim --keep=0
ipython history trim: added --keep=<N> as an alias for the more verbose
--HistoryTrim.keep=<N>ipython history clear subcommand, which is the same as the newly supported
ipython history trim --keep=0