* retun the old value from del_attr
* retun the old value from del_attr

DisposaBoy/GoSublime-next,nathany/GoSublime,Mistobaan/GoSublime,dlclark/GoSublime,alexmullins/GoSublime,allgeek/GoSublime,justinfx/GoSublime,anacrolix/GoSublime,cdht/GoSublime,cdht/GoSublime,Mistobaan/GoSublime,cdht/GoSublime,Mistobaan/GoSublime,simman/GoSublime,nathany/GoSublime,DisposaBoy/GoSublime-next,anacrolix/GoSublime,alexmullins/GoSublime,DisposaBoy/GoSublime,allgeek/GoSublime,anacrolix/GoSublime,allgeek/GoSublime,DisposaBoy/GoSublime-next,dlclark/GoSublime,DisposaBoy/GoSublime,justinfx/GoSublime,FWennerdahl/GoSublime,FWennerdahl/GoSublime,FWennerdahl/GoSublime,simman/GoSublime,alexmullins/GoSublime,nathany/GoSublime,simman/GoSublime