[DF-3541] remove excessive data from datanode
[DF-3541] remove children from data node
Merge commit 'c06b964ddeec1ad316bcac07412f1efa1f497f8e' into framework_0_5_5_datanode

Conflicts:
	Sources/Internal/Render/Material/NMaterial.cpp
Merge branch 'origin/framework_0_5_5'
DF-3527 material with fresnel based opacity
[DF-3613][DF-3614][DF-3615] fixes for review
Merge branch 'origin/framework_0_5_5'
DF-3527 Render pass small refactoring, shadow volume is renderlayer now
Merge branch 'origin/framework_0_5_5'
DF-3527 RenderPass refactoring
DF-3527 water reflection refraction buffer rendering
DF-3527 fbos render fixed
DF-3527 real reflections material
DF-3527 distortion scales added
DF-3527 dynamic textures not saving now
DF-3527 shader fixed, export fixed for runtime textures
Merge branch 'to_master' into water
DF-3527 light fixed, tangent space RR
[DF-3085] base implementation, proj fixes for mac os and ios
DF-3527 oblique clipping test implementation