Merge remote-tracking branch 'origin/master' into 1.10

# Conflicts:
#	Source/Engine/Level/Prefabs/Prefab.Apply.cpp

Source/Engine/AI/BehaviorKnowledgeSelector.cs

@@ -74,7 +74,7 @@ namespace FlaxEngine
         /// </summary>
         /// <param name="knowledge">The knowledge container to access.</param>
         /// <param name="value">The value to set.</param>
-        /// <returns>True if set value value, otherwise false.</returns>
+        /// <returns>True if set value, otherwise false.</returns>
         public bool Set(BehaviorKnowledge knowledge, object value)
         {
             return knowledge != null && knowledge.Set(Path, value);