TUT: update tutorials to use dictionary-style sets

- can now specify sampled sets as dictionary entries instead of a list
  entry.
    can now use:  sets { ... }
    instead of:   sets ( ... );

  This is similar to sampled surfaces and makes it easier to
  manage with dictionary manipulation tools.

TUT: update to use writeTime instead of outputTime

tutorials/verificationAndValidation/atmosphericModels/atmDownstreamDevelopment/setups.orig/common/system/sampleLines

@@ -14,7 +14,7 @@ _sampler
     enabled                 false;
 
     sets
-    (
+    {
         x_0mPatch    // inlet patch face centres
         {
             type        face;
@@ -57,7 +57,7 @@ _sampler
             start       (5000 50 0);
             end         (5000 50 500);
         }
-    );
+    }
 }
 
 samples_u