KDChart 2.7.2
WARNING Version 2.7.x will be the last to support Qt4
- CMake buildsystem - option BUILD_PYTHON_BINDINGS => KDChart_PYTHON_BINDINGS
- CMake buildsystem - option PYTHON_BINDINGS_INSTALL_PREFIX => KDChart_PYTHON_BINDINGS_INSTALL_PREFIX
- Fix static linking examples and unittests in the CMake buildsystem
- small buildsystem improvements