[Kst] [Kst-plot/kst] 88d3b4: Add 'scroll by one screen': ctrl-arrow.

[Barth Netterfield]

  Branch: refs/heads/master
  Home:   https://github.com/Kst-plot/kst
  Commit: 88d3b48407316e35e132074552eb2100e2a99ee0
      https://github.com/Kst-plot/kst/commit/88d3b48407316e35e132074552eb2100e2a99ee0
  Author: Barth Netterfield <netterfield at astro.utoronto.ca>
  Date:   2016-03-30 (Wed, 30 Mar 2016)

  Changed paths:
    M src/libkst/matrixfactory.cpp
    M src/libkstapp/plotitem.cpp
    M src/libkstapp/plotitem.h
    M src/libkstapp/sharedaxisboxitem.cpp
    M src/libkstapp/sharedaxisboxitem.h
    M src/widgets/vectorselector.cpp

  Log Message:
  -----------
  Add 'scroll by one screen': ctrl-arrow.