VS 2015 build fixes: 'stat' collides with the stat() POSIX function, C++11 conformant string concatenation, 'timezone' no longer defined, only '_timezone'
VS 2015 build fixes: 'stat' collides with the stat() POSIX function, C++11 conformant string concatenation, 'timezone' no longer defined, only '_timezone'

BenoitPerrot/oce,tpaviot/oce,BenoitPerrot/oce,BenoitPerrot/oce,tpaviot/oce,BenoitPerrot/oce,tpaviot/oce,BenoitPerrot/oce,tpaviot/oce,tpaviot/oce