use while (runTime.loop() { .. } where possible in solvers

- change system/controlDict to use functions {..} instead of functions (..);
  * This is internally more efficient
- fixed formatting of system/controlDict functions entry

- pedantic change: use 'return 0' instead of 'return(0)' in the applications,
  since return is a C/C++ keyword, not a function.

applications/utilities/mesh/manipulation/moveDynamicMesh/moveDynamicMesh.C

@@ -46,9 +46,8 @@ int main(int argc, char *argv[])
 #   include "createTime.H"
 #   include "createDynamicFvMesh.H"
 
-    while (runTime.run())
+    while (runTime.loop())
     {
-        runTime++;
         Info<< "Time = " << runTime.timeName() << endl;
 
         mesh.update();