[Kst] [Kst-plot/kst] 32974f: Include include to make it compile

[Barth Netterfield]

  Branch: refs/heads/master
  Home:   https://github.com/Kst-plot/kst
  Commit: 32974fbec3a5a88020cc4e81c73a52b168baaff3
      https://github.com/Kst-plot/kst/commit/32974fbec3a5a88020cc4e81c73a52b168baaff3
  Author: Barth Netterfield <netterfield at astro.utoronto.ca>
  Date:   2016-06-30 (Thu, 30 Jun 2016)

  Changed paths:
    M src/libkstapp/plotaxis.cpp
    M src/libkstapp/plotrenderitem.cpp

  Log Message:
  -----------
  Include include to make it compile