Added OpenSim.32BitLaunch.exe that can be used on 64-bit systems to run OpenSim in 32-bit mode.

Fixed ScriptEngine.Common startup problems.

prebuild.xml

@@ -1280,6 +1280,7 @@
       <Reference name="libsecondlife.dll"/>
       <Reference name="Axiom.MathLib.dll" localCopy="false"/>
       <Reference name="XMLRPC.dll"/>
+      <Reference name="Nini.dll" />
 
       <Files>
         <Match pattern="*.cs" recurse="true"/>