[twitter] Empty the set after sending the signal to save memory
[twitter] Empty the set after sending the signal to save memory

ThomasBollmeier/libsocialweb-flickr-oauth,lcp/mojito,lcp/libsocialweb,ThomasBollmeier/libsocialweb-flickr-oauth,lcp/libsocialweb,lcp/libsocialweb,ThomasBollmeier/libsocialweb-flickr-oauth,lcp/mojito,GNOME/libsocialweb,lcp/mojito,GNOME/libsocialweb,GNOME/libsocialweb