hg: jdk9/sandbox/nashorn: 8134562: jjs history object should have methods to save/load history to/from given file and also allow reexecution of commands by a call

[chris.hegarty at oracle.com]

Changeset: 6263188b48de
Author:    sundar
Date:      2015-08-27 14:35 +0530
URL:       http://hg.openjdk.java.net/jdk9/sandbox/nashorn/rev/6263188b48de

8134562: jjs history object should have methods to save/load history to/from given file and also allow reexecution of commands by a call
Reviewed-by: hannesw, attila

! src/jdk.scripting.nashorn.shell/share/classes/jdk/nashorn/tools/jjs/EditObject.java
! src/jdk.scripting.nashorn.shell/share/classes/jdk/nashorn/tools/jjs/HistoryObject.java
! src/jdk.scripting.nashorn.shell/share/classes/jdk/nashorn/tools/jjs/Main.java