Improving CList code and test.

Author: Clément

source/code/projects/CList/CList/CList.cs

@@ -166,7 +166,7 @@ public void RemoveL()
       {
         Cell cCell = first;
         while (
-          cCell.Next != null && cCell.Next.Next != null
+          cCell.Next.Next != null
         )
         {
           cCell = cCell.Next;

source/code/projects/CList/CList/Program.cs

@@ -152,5 +152,11 @@ static void Main(string[] args)
     myList3.RemoveI(0);
     Console.WriteLine("After removing element at index 0:");
     Console.WriteLine(myList3);
-  }
+        myList3.AddL(11.5);
+        myList3.AddF(-8.15);
+        Console.WriteLine(myList3);
+        myList3.RemoveL();
+        Console.WriteLine(myList3);
+
+    }
 }