Update README. Add bugfix notes.

README.md

@@ -15,6 +15,7 @@ Tiny but poweful single file wavefront obj loader written in C++. No dependency
 What's new
 ----------
 
+* Jun 23, 2015 : Various fixes and added more projects using tinyobjloader. Thanks many contributors!
 * Mar 03, 2015 : Replace atof() with hand-written parser for robust reading of numeric value. Thanks skurmedel!
 * Feb 06, 2015 : Fix parsing multi-material object
 * Sep 14, 2014 : Add support for multi-material per object/group. Thanks Mykhailo!
@@ -47,6 +48,7 @@ TinyObjLoader is successfully used in ...
 * Stanford CS148 http://web.stanford.edu/class/cs148/assignments/assignment3.pdf
 * Awesome Bump http://awesomebump.besaba.com/about/
 * sdlgl3-wavefront OpenGL .obj viewer https://github.com/chrisliebert/sdlgl3-wavefront
+* pbrt-v3 https://https://github.com/mmp/pbrt-v3
 * Your project here!
 
 Features

tiny_obj_loader.cc

@@ -5,6 +5,8 @@
 //
 
 //
+// version 0.9.12: Fix groups being ignored if they have 'usemtl' just before 'g' (#44)
+// version 0.9.11: Invert `Tr` parameter(#43)
 // version 0.9.10: Fix seg fault on windows.
 // version 0.9.9 : Replace atof() with custom parser.
 // version 0.9.8 : Fix multi-materials(per-face material ID).