Merge branch 'release/v0.8.7' into develop
Add demangle_type_name and sanitize functions
Add print_shaders function to Pass and GBufferPass classes
Implement print_shaders function in Pipeline class
Use c++11.
Merge pull request #39 from 4og/feature/print_shaders

Implement Pipeline::print_shaders()
implemented pre resize
implemented multi-context upload_to fix
implemented pre resize
Merge pull request #60 from vrsys/feature/video3d_multicontextfix

Feature/video3d multicontextfix
Version bump.
Merge branch 'release/v0.8.8'