renamed foundation/image/spectrum.h to regularspectrum.h, to match the class name.
tweaked a comment.
renamed foundation::Spectrum31[f,d] to foundation::RegularSpectrum31[f,d].
minor code tweak.
micro-optimization.
small code tweaks.
prevent clashing between template type arguments and the renderer::Spectrum type.
fixed wrong forward declarations.
improved robustness of unit test.
call renderer::Spectrum and renderer::Alpha constructors before evaluating entity inputs.
Merge pull request #596 from est77/master

Added oren nayar to standard supported OSL closures
Merge pull request #597 from est77/master

as_oren_nayar is gone. Use oren_nayar from now on.
Merge pull request #599 from est77/master

Fixed wrong includes for non x86 archs
fixed comment.
renamed foundation/platform/timer.h to foundation/platform/timers.h.
removed foundation::System::get_cpu_core_frequency(): unused and difficult to implement on all platforms.
appleseed's internal color pipeline now works in pure RGB mode as long as possible (wip).
Merge branch 'master' of github.com:appleseedhq/appleseed
don't overload std::min() and std::max().
tweaked command line switch description message.