Fix logging message for freeing a QObject.

Ignore-this: f94bc352feea6fe5838db77cdd5e4808

darcs-hash:20140529215307-4d2ae-2e8c4d26e75d9f37f35799d67e25bc6768f8053a
Fix premature collection of objects by hooking into QVariant.

Ignore-this: 3eb6aabab8ad0b91cb785460635fc034

darcs-hash:20140530080336-4d2ae-193e0b2f697c9b791268c06f63a3ce3a8d28db18