am 960b31e3: Merge "SipService: unset session listener if listener is gone." into gingerbread

Merge commit '960b31e3b3b40f92665be4b7a79da7f05ea19751' into gingerbread-plus-aosp

* commit '960b31e3b3b40f92665be4b7a79da7f05ea19751':
  SipService: unset session listener if listener is gone.
tree: 6ca016689d76855a34a6cd944e00a19b1cb92bcd
  1. cmds/
  2. include/
  3. libs/
  4. opengl/
  5. services/
  6. vpn/
  7. MODULE_LICENSE_APACHE2
  8. NOTICE