speedup aabb::intersects
minor changes
merge with master
merge with master
fixed tests
minimal aabbChanged() improvement
fix linux compilation
merge with master
Merge branch 'aabb-intersection-and-voxeltreenode-sphere-speedup' of https://github.com/voxelinc/voxellancer into aabb-intersection-and-voxeltreenode-sphere-speedup
fixed coding-style
Merge pull request #180 from voxelinc/aabb-intersection-and-voxeltreenode-sphere-speedup

AABB intersection-test speedup and VoxelTreeNode sphere-caching