BUG: sampledTriSurfaceMesh: sampling outside of mesh. Fixes #575.

There are a few issues:
- error would only throw exceptions if not parallel
- if we change this we also need to make sure the functionObjectList
  construction is synchronised
- bounding box overlap was not returning the correct status so the code
  to avoid the issue of 'badly formed bounding box' was not triggered.

src/OpenFOAM/db/functionObjects/functionObjectList/functionObjectList.C

@@ -791,7 +791,9 @@ bool Foam::functionObjectList::read()
                 FatalError.throwExceptions(throwingError);
                 FatalIOError.throwExceptions(throwingIOerr);
 
-                if (foPtr.valid())
+                // If one processor only has thrown an exception (so exited the
+                // constructor) invalidate the whole functionObject
+                if (returnReduce(foPtr.valid(), andOp<bool>()))
                 {
                     objPtr = foPtr.ptr();
                 }