v0.5.0

This is a milestone release and the first version that's ready to be released to the public.

Highlights:

• fully header-only, neat, simple & modern C++ code & doxygen documentation
• affine camera pose fitting
• shape-to-landmarks fitting
• isomap extraction
• includes our public shape-only 3D Morphable Face model
• example application (fit-model.cpp)

Contributors:

• @patrikhuber
• @PhilippKopp
• A handful of people from the Centre for Vision, Speech & Signal Processing that created and previously worked on the 3D face model