Merge branch 'release/v0.8.9' into develop
Fix creation of shared_ptr.
Pass Texture2D by reference.
Qualify method as const.
Mode nodes to separate directory.
Add namespace node.
Fix skymap seam problem
Merge pull request #67 from 4og/feature/skymap_seam

Fix skymap seam problem
Fix addition.
Add BoundingSphere.
Merge branch 'develop' of https://github.com/vrsys/guacamole into develop
Change PLOD Ubershader to work with new guacamole design
Add Flags to PLODLoader
use pbr reset function for lazy model loading
fixed lazy models feature for multiple contexts
add first root bounding box picking test to PLODNode
Print PBR library pathes on running cmake
Add intersection method for schism bounding box in Ray class
Implement ray test for PLOD. Code cleaning
Clean code