* Removed redundant code in RestService.cs

* Removed unchecked TryParse, replaced with Parse as we were not checking for success and could lead to weirdness if an exception is ignored.
* Removed unused variable m_newAvatar
* Removed several unused try{}catch(Exception e){}'s.
* Added null assignment in simpleapp to prevent warning.

OpenSim/Region/Environment/Modules/ScriptsHttpRequests.cs

@@ -342,7 +342,7 @@ namespace OpenSim.Region.Environment.Modules
             {
                 httpThread.Abort();
             }
-            catch (Exception e) { }
+            catch (Exception) { }
         }
     }