Output of standard deviation

The output for the standard deviation (still Gmsh2 only) was added.

Change in the output routines to reduce code repetition.

src/modules/moduleSolver.f90

@@ -828,12 +828,29 @@ MODULE moduleSolver
 
     SUBROUTINE doAverage(t)
       USE moduleAverage
+      USE moduleMesh
       IMPLICIT NONE
 
       INTEGER, INTENT(in):: t
+      INTEGER:: tAverage, n
+
 
       IF (useAverage) THEN
-        CALL averageScheme%updateAverage(t)
+        tAverage = t - tAverageStart
+
+        IF (tAverage == 1) THEN
+          !First iteration in which average scheme is used
+          DO n = 1, mesh%numNodes
+            CALL averageScheme(n)%firstAverage(mesh%nodes(n)%obj%output)
+
+          END DO
+        ELSEIF (tAverage > 1) THEN
+          DO n = 1, mesh%numNodes
+            CALL averageScheme(n)%updateAverage(mesh%nodes(n)%obj%output, tAverage)
+
+          END DO
+
+        END IF
 
       END IF