[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 <***@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.