[gnome-panel] (2 commits) Non-fast-forward update to branch wip/segeiger/fix-panel-crash

[Sebastian Geiger <segeiger src gnome org>]

The branch 'wip/segeiger/fix-panel-crash' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  2c6c067... panel-menu-items: implement dispose function
  bfd2e29... panel-menu-items: disconnect all signals in dispose functio

Commits added to the branch:

  a6c486b... panel-menu-items: implement dispose function
  e91f5f2... panel-menu-items: disconnect all signals in dispose functio