[Kst] [Kst-plot/kst] 0a4e7d: Fix BIS datasource updates

[Barth Netterfield]

  Branch: refs/heads/master
  Home:   https://github.com/Kst-plot/kst
  Commit: 0a4e7d5420b9c27d0b24ec9bd4c2eba43a2b0d27
      https://github.com/Kst-plot/kst/commit/0a4e7d5420b9c27d0b24ec9bd4c2eba43a2b0d27
  Author: Barth Netterfield <netterfield at astro.utoronto.ca>
  Date:   2015-05-07 (Thu, 07 May 2015)

  Changed paths:
    M src/datasources/bis/bisdatasource.cpp
    M src/libkstapp/matrixdialog.cpp

  Log Message:
  -----------
  Fix BIS datasource updates

Also ignore obsolete matrix settings.