proxy-call: Fix memory leaks in multipart form REST calls.
proxy-call: Fix memory leaks in multipart form REST calls.

https://bugs.meego.com/show_bug.cgi?id=13726

ThomasBollmeier/librest-oauth-proxy,Distrotech/librest,Distrotech/librest,GNOME/librest,ThomasBollmeier/librest-oauth-proxy,GNOME/librest,GNOME/librest