Moved LaunchSLClient build system to Prebuild.

Refactored LaunchSLClient code a bit.

OpenSim/Tools/LaunchSLClient/LaunchSLClient/Program.cs

@@ -25,11 +25,11 @@
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 * 
 */
+
 using System;
 using System.Collections.Generic;
 using System.Windows.Forms;
 
-
 namespace LaunchSLClient
 {
     static class Program
@@ -40,7 +40,6 @@ namespace LaunchSLClient
         [STAThread]
         static void Main()
         {
-
             try
             {
                 Application.EnableVisualStyles();