New wstring nsIRegistry interface, bug 23859;

new version registry name for mozilla, bug 10533;
log now created by install wizards too, bug 26309;
downloaded file cleanup moved into manager, bug 24249;
scaffolding for bug 12817 and 12361 (conditional autoreg)

xpfe/appshell/src/nsAppShellService.cpp

@@ -320,9 +320,6 @@ nsAppShellService::EnumerateComponents( EnumeratorMemberFunction function ) {
 
     // Clean up.
     if ( registry ) {
-        // Registry was accessed, close it.
-        registry->Close();
-
         // Release enumerator (if necessary).
         NS_IF_RELEASE( components );