Import a history list from file fname, and place it
into the history list hisname.
importHistory(hisname="", fname="", updateHis=TRUE)name of the history list to be populated.
The default ("") uses the value from getWinAct()[1].
file name of history file to import.
The default ("") causes an open-file window to be displayed.
logical: if TRUE, update the history widget to reflect the change
in size and index.