[Kst] [Kst-plot/kst] 78d943: Fix some warnings and errors from clang/sanitize.

[Barth Netterfield]

  Branch: refs/heads/master
  Home:   https://github.com/Kst-plot/kst
  Commit: 78d9431cc048d0f55c33bff3c5610e56664cd45d
      https://github.com/Kst-plot/kst/commit/78d9431cc048d0f55c33bff3c5610e56664cd45d
  Author: Barth Netterfield <netterfield at astro.utoronto.ca>
  Date:   2016-06-27 (Mon, 27 Jun 2016)

  Changed paths:
    M CMakeLists.txt
    M cmake/modules/Clang-sanitize.cmake
    M src/datasources/bis/bis.c
    M src/datasources/bis/bisdatasource.cpp
    M src/datasources/netcdf/netcdfsource.h
    M src/libkst/datasource.cpp
    M src/libkst/objectstore.cpp
    M src/libkstapp/filterfitdialog.cpp
    M src/libkstapp/labelitem.cpp
    M src/libkstapp/labelitem.h
    M src/libkstapp/legenditem.cpp
    M src/libkstapp/plotaxis.cpp
    M src/libkstapp/plotitem.cpp
    M src/libkstmath/escan.cpp
    M src/libkstmath/image.cpp
    M src/plugins/dataobject/genericfilter/polynom.h
    M src/plugins/dataobject/lockin/lockin.cpp

  Log Message:
  -----------
  Fix some warnings and errors from clang/sanitize.