update tutorial

	modified:   ../../../compressible/rhoPisoFoam/ras/cavity/constant/polyMesh/boundary
	modified:   ../../buoyantPisoFoam/hotRoom/constant/polyMesh/boundary
	modified:   ../../buoyantPisoFoam/hotRoom/system/controlDict
	modified:   ../../buoyantPisoFoam/hotRoom/system/fvSchemes
	deleted:    ../../buoyantPisoFoam/hotRoom/0/mut
	modified:   constant/polyMesh/boundary
	deleted:    ../../buoyantSimpleRadiationFoam/hotRadiationRoom/0/mut
	deleted:    ../../chtMultiRegionFoam/multiRegionHeater/0/mut

tutorials/compressible/rhoPisoFoam/ras/cavity/constant/polyMesh/boundary

 /*--------------------------------*- C++ -*----------------------------------*\
 | =========                 |                                                 |
 | \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
-|  \\    /   O peration     | Version:  1.5                                   |
-|   \\  /    A nd           | Web:      http://www.OpenFOAM.org               |
+|  \\    /   O peration     | Version:  dev                                   |
+|   \\  /    A nd           | Web:      www.OpenFOAM.org                      |
 |    \\/     M anipulation  |                                                 |
 \*---------------------------------------------------------------------------*/
 FoamFile
@@ -10,32 +10,31 @@ FoamFile
     version     2.0;
     format      ascii;
     class       polyBoundaryMesh;
+    location    "constant/polyMesh";
     object      boundary;
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
 3
 (
-movingWall
-{
-    type wall;
-    nFaces 20;
-    startFace 760;
-}
-
-fixedWalls
-{
-    type wall;
-    nFaces 60;
-    startFace 780;
-}
-
-frontAndBack
-{
-    type empty;
-    nFaces 800;
-    startFace 840;
-}
+    movingWall
+    {
+        type            wall;
+        nFaces          20;
+        startFace       760;
+    }
+    fixedWalls
+    {
+        type            wall;
+        nFaces          60;
+        startFace       780;
+    }
+    frontAndBack
+    {
+        type            empty;
+        nFaces          800;
+        startFace       840;
+    }
 )
 
 // ************************************************************************* //

tutorials/heatTransfer/buoyantPisoFoam/hotRoom/constant/polyMesh/boundary

 /*--------------------------------*- C++ -*----------------------------------*\
 | =========                 |                                                 |
 | \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
-|  \\    /   O peration     | Version:  1.5                                   |
-|   \\  /    A nd           | Web:      http://www.OpenFOAM.org               |
+|  \\    /   O peration     | Version:  dev                                   |
+|   \\  /    A nd           | Web:      www.OpenFOAM.org                      |
 |    \\/     M anipulation  |                                                 |
 \*---------------------------------------------------------------------------*/
 FoamFile
@@ -10,6 +10,7 @@ FoamFile
     version     2.0;
     format      ascii;
     class       polyBoundaryMesh;
+    location    "constant/polyMesh";
     object      boundary;
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

tutorials/heatTransfer/buoyantPisoFoam/hotRoom/system/controlDict

@@ -43,5 +43,8 @@ timePrecision   6;
 
 runTimeModifiable yes;
 
+adjustTimeStep  no;
+
+maxCo           0.5;
 
 // ************************************************************************* //

tutorials/heatTransfer/buoyantPisoFoam/hotRoom/system/fvSchemes

@@ -33,6 +33,7 @@ divSchemes
     div(phi,k)      Gauss upwind;
     div(phi,epsilon) Gauss upwind;
     div(phi,R)      Gauss upwind;
+    div(phiU,p)     Gauss linear;
     div(R)          Gauss linear;
     div((muEff*dev2(grad(U).T()))) Gauss linear;
 }