set GLM_FORCE_RADIANS (refs #128)
Add VertexDrawable convenience class
Merge branch 'master' into glm_0.9.5_compatibility

Conflicts:
	source/examples/bindless-textures/main.cpp
	source/glowutils/include/glowutils/VertexDrawable.h
	source/glowutils/source/VertexDrawable.cpp
Add vao accessor to VertexAttributeBindind (closes #180)
Add glm compat to examples
Make Isocahedron glm-0.9.5 compatible
Merge branch 'master' into glm_0.9.5_compatibility
Merge pull request #182 from hpicgs/glm_0.9.5_compatibility

Glm 0.9.5 compatibility
Merge branch 'master' into navigation_techniques