updated secure memory code from libsecret (upstream).
Huge thanks to Stefan Walter from GNOME for doing this; it finally fixes
applications crash when interacting with the keyring.
Core of the issue is in libtool and is currently being worked on.
libsecret is a library for storing and retrieving passwords and other
secrets. It communicates with the "Secret Service" using DBus.
gnome-keyring and ksecretservice are both implementations of a Secret
Service.
It is a replacement for libgnome-keyring. Nothing will use it as yet,
but it's better to have it in-tree now to start fixing portability
issues with upstream. It will also ease our work on the next major
release of GNOME.
