muted PBR and PLOD stuff
Merge branch 'feature/new_renderer' of github.com:vrsys/guacamole into feature/new_renderer
Add missing GUA_DLL.
Merge pull request #95 from scholli/feature/new_renderer

Feature/new renderer
Merge branch 'feature/new_renderer' of github.com:vrsys/guacamole into feature/new_renderer
FindGPUcast.cmake now searches for GPUcast headers in /opt/local/include
NURBS plugin now compiles on linux with physics, NURBS example opens a window now, still NURBS shaders are not compiling
extended WindowBase interface; made ctor of TriMeshNode public again because this is currently needed by avango
added missing const qualifier for should_close() on Window
should_close() in Window is now defined in Window.cpp
MaterialLoader produces pbs materials now
added fps output to stress_test example
removed duplicate gua_model_matrix from volume renderer
disabled material copying
Remove unnecessary header.
fragment and vertex methods of MaterialShaderDescription are now cleared if a new load_from_file is issued
Merge branch 'feature/new_renderer' of github.com:vrsys/guacamole into feature/new_renderer
MaterialShaderDescription stores file name now
Add tone mapping.
MaterialShaderMethod maintains file name now