Merge branch 'master' into blender2.8

In addition to pack of conflicts listed below, also had to comment out particle part of new Alembic code... :/

Conflicts:
	intern/ghost/intern/GHOST_WindowWin32.cpp
	source/blender/blenkernel/BKE_effect.h
	source/blender/blenkernel/BKE_pointcache.h
	source/blender/blenkernel/intern/cloth.c
	source/blender/blenkernel/intern/depsgraph.c
	source/blender/blenkernel/intern/dynamicpaint.c
	source/blender/blenkernel/intern/effect.c
	source/blender/blenkernel/intern/particle_system.c
	source/blender/blenkernel/intern/pointcache.c
	source/blender/blenkernel/intern/rigidbody.c
	source/blender/blenkernel/intern/smoke.c
	source/blender/blenkernel/intern/softbody.c
	source/blender/depsgraph/intern/builder/deg_builder_relations.cc
	source/blender/gpu/intern/gpu_debug.c
	source/blender/makesdna/DNA_object_types.h
	source/blender/makesrna/intern/rna_particle.c

source/gameengine/Ketsji/KX_NavMeshObject.cpp

@@ -306,7 +306,12 @@ bool KX_NavMeshObject::BuildNavMesh()
 			|| vertsPerPoly<3)
 	{
 		printf("Can't build navigation mesh data for object:%s\n", m_name.ReadPtr());
-		if (vertices) delete[] vertices;
+		if (vertices) {
+			delete[] vertices;
+		}
+		if (dvertices) {
+			delete[] dvertices;
+		}
 		return false;
 	}