More fixes with latest master.

ScriptableRenderPipeline/HDRenderPipeline/Editor/Sky/AtmosphericScattering.meta

 fileFormatVersion: 2
-guid: 8cfc4d75944230c49ab7bf04f1e8cb76
+guid: f22449fd4996edd43b8e918fda712003
-timeCreated: 1507718601
-licenseType: Pro
 DefaultImporter:
   externalObjects: {}
   userData: 

ScriptableRenderPipeline/HDRenderPipeline/Editor/Sky/AtmosphericScattering/AtmosphericScatteringEditor.cs

 using UnityEngine;
 using UnityEditor;
 using UnityEditor.Experimental.Rendering;
+using UnityEngine.Experimental.Rendering.HDPipeline;
-namespace UnityEngine.Experimental.Rendering.HDPipeline
+namespace UnityEditor.Experimental.Rendering.HDPipeline
 {
     public class AtmosphericScatteringEditor : VolumeComponentEditor
     {

ScriptableRenderPipeline/HDRenderPipeline/Editor/Sky/HDRISky/HDRISkyEditor.cs

 using UnityEngine;
 using UnityEditor;
-using UnityEditor.Experimental.Rendering;
+using UnityEngine.Experimental.Rendering.HDPipeline;
-namespace UnityEngine.Experimental.Rendering.HDPipeline
+namespace UnityEditor.Experimental.Rendering.HDPipeline
 {
     [CanEditMultipleObjects]
     [VolumeComponentEditor(typeof(HDRISky))]

ScriptableRenderPipeline/HDRenderPipeline/Editor/Sky/ProceduralSky/ProceduralSkyEditor.cs

 using UnityEngine;
 using UnityEditor;
-using UnityEditor.Experimental.Rendering;
+using UnityEngine.Experimental.Rendering.HDPipeline;
-namespace UnityEngine.Experimental.Rendering.HDPipeline
+namespace UnityEditor.Experimental.Rendering.HDPipeline
 {
     [CanEditMultipleObjects]
     [VolumeComponentEditor(typeof(ProceduralSky))]

ScriptableRenderPipeline/HDRenderPipeline/Editor/Sky/AtmosphericScattering/ExponentialFogEditor.cs

 using System.Collections.Generic;
 using UnityEngine;
 using UnityEditor;
+using UnityEngine.Experimental.Rendering.HDPipeline;
-namespace UnityEngine.Experimental.Rendering.HDPipeline
+namespace UnityEditor.Experimental.Rendering.HDPipeline
 {
     [VolumeComponentEditor(typeof(ExponentialFog))]
     public class ExponentialFogEditor : AtmosphericScatteringEditor

ScriptableRenderPipeline/HDRenderPipeline/Editor/Sky/AtmosphericScattering/LinearFogEditor.cs

 using UnityEngine;
 using UnityEditor;
 using UnityEditor.Experimental.Rendering;
+using UnityEngine.Experimental.Rendering.HDPipeline;
-namespace UnityEngine.Experimental.Rendering.HDPipeline
+namespace UnityEditor.Experimental.Rendering.HDPipeline
 {
     [VolumeComponentEditor(typeof(LinearFog))]
     public class LinearFogEditor : AtmosphericScatteringEditor