Graphene 1.8.6 (stable) - Fix matrix multiplication when the result matrix is also one of the operands [#135, Benjamin Otte] - Fix check when converting a 4x4 matrix into an affine transformation matrix [#136, Benjamin Otte] - Fix interpolation between matrices with a perspective component [#138, Benjamin Otte] - Documentation fixes for matrix/matrix and matrix/vector multiplication operators [#137, Emmanuele Bassi, Matthias Clasen, Pekka Paalanen]