[reSIProcate] about memory leak

[Heesung Kim <myglade@xxxxxxxxx>]

i ran basicCall.cxx on Win32 to check memory leak.  To do it, I
changed some stack allocation variable to heap alloc.  (stackUac,
stackUas, uac, uas). and set _CrtMemCheckpoint to the first and last
of main.

As a result of it, I found a strange thing except static or global
memory allocations.

In making sdp, I assumed that to delete sdp is to delete txt(Data),
hfv(HeaderFieldValue).

But, two variables were not deleted.  so, I need to delete both of
them explicitly.

I guess it is a kind of bug.

And another one,  When I made some program using dum, I found another
leak detected by CrtMemCheckpoint.   it is InviteSession.cxx.
mProposedLocalSdp.release(); line 1993.

I guess just release of auto_ptr unassigned by proper variable may
occur dangling pointer.
But in this file, I found mProposedLocalSdp.release() is often used.

I am not sure of it.  because other objects may deallocate them.

What do you think of it?

thank you.