Standardized the naming of functions which control the writing of fields etc.

to have the prefix 'write' rather than 'output'

So outputTime() -> writeTime()

but 'outputTime()' is still supported for backward-compatibility.

Also removed the redundant secondary-writing functionality from Time
which has been superseded by the 'writeRegisteredObject' functionObject.

tutorials/compressible/rhoCentralDyMFoam/movingCone/system/cuttingPlane

@@ -11,7 +11,7 @@ cuttingPlane
     type            surfaces;
     functionObjectLibs ("libsampling.so");
 
-    writeControl   outputTime;
+    writeControl   writeTime;
 
     surfaceFormat   vtk;
     fields          ( p U );

tutorials/compressible/rhoPimpleFoam/les/pitzDaily/system/controlDict

@@ -56,7 +56,7 @@ functions
         type            fieldAverage;
         functionObjectLibs ( "libfieldFunctionObjects.so" );
         enabled         true;
-        writeControl   outputTime;
+        writeControl   writeTime;
 
         fields
         (

tutorials/compressible/sonicDyMFoam/movingCone/system/cuttingPlane

@@ -11,7 +11,7 @@ cuttingPlane
     type            surfaces;
     functionObjectLibs ("libsampling.so");
 
-    writeControl   outputTime;
+    writeControl   writeTime;
 
     surfaceFormat   vtk;
     fields          ( p U );