Improve date and time header (some tests failing now).

- NEU: Datumsangaben werden in eine Zeile "Laborwerte vom ..." eingebettet.

zaaReloaded2/Formatter/TimePointFormatter.cs

@@ -28,6 +28,33 @@ namespace zaaReloaded2.Formatter
     /// </summary>
     public class TimePointFormatter
     {
+        #region Static methods
+
+        public static string DateHeader(DateTime date)
+        {
+            return FormatHeader(date.ToShortDateString());
+        }
+
+        public static string DateAndTimeHeader(DateTime dateTime)
+        {
+            return FormatHeader(dateTime.ToString());
+        }
+
+        #endregion
+
+        #region Private static methods
+
+        static string FormatHeader(string text)
+        {
+            return String.Format("{0}Laborwerte vom {1}:{2}",
+                Environment.NewLine,
+                text,
+                Environment.NewLine
+                );
+        }
+
+        #endregion
+
         #region Properties
 
         /// <summary>
@@ -77,7 +104,7 @@ namespace zaaReloaded2.Formatter
         /// <returns></returns>
         public string GetDateHeader()
         {
-            return FormatHeader(TimeStamp.ToShortDateString());
+            return DateHeader(TimeStamp);
         }
 
 
@@ -88,20 +115,7 @@ namespace zaaReloaded2.Formatter
         /// <returns></returns>
         public string GetDateAndTimeHeader()
         {
-            return FormatHeader(TimeStamp.ToString());
-        }
-
-        #endregion
-
-        #region Private methods
-
-        string FormatHeader(string text)
-        {
-            return String.Format("{0}{1}:{2}",
-                Environment.NewLine,
-                text,
-                Environment.NewLine
-                );
+            return DateAndTimeHeader(TimeStamp);
         }
 
         #endregion