Corrected warnings, paths and cmake build under linux

App/App.pro

App/src/TestIsGISAXS1.cpp

App/src/TestIsGISAXS10.cpp

App/src/TestIsGISAXS11.cpp

App/src/TestIsGISAXS12.cpp

App/src/TestIsGISAXS13.cpp

App/src/TestIsGISAXS14.cpp

App/src/TestIsGISAXS15.cpp

App/src/TestIsGISAXS2.cpp

App/src/TestIsGISAXS3.cpp

App/src/TestIsGISAXS4.cpp

App/src/TestIsGISAXS5.cpp

App/src/TestIsGISAXS6.cpp

App/src/TestIsGISAXS7.cpp

App/src/TestIsGISAXS8.cpp

App/src/TestIsGISAXS9.cpp

App/src/TestSpecularMagnetic.cpp

BornAgain.pro

CMakeLists.txt

Core/Tools/inc/Utils.h