Probes in 0 iteration

Probes are now written at the 0 iteration.

Additionally, and this shouldn't be done, some small changes to the quad
elements. This should be done in a separate commit, but I'm lazy.

src/modules/moduleProbe.f90

@@ -91,7 +91,13 @@ MODULE moduleProbe
                       1:self%nv(3)))
 
       !Number of iterations between output
-      self%every = NINT(timeStep/ tauMin / ti_ref)
+      IF (timeStep == 0.D0) THEN
+        self%every = 1
+
+      ELSE
+        self%every = NINT(timeStep/ tauMin / ti_ref)
+
+      END IF
       
       !Maximum radius
       !TODO: Make this an input parameter
@@ -270,7 +276,7 @@ MODULE moduleProbe
 
       DO i = 1, nProbes
         probe(i)%f = 0.D0
-        probe(i)%update = MOD(t, probe(i)%every) == 0 .OR. t == tFinal .OR. t == tInitial
+        probe(i)%update = t == tFinal .OR. t == tInitial .OR. MOD(t, probe(i)%every) == 0
 
       END DO