[balsa] (19 commits) Non-fast-forward update to branch popover

[Peter Bloomfield <peterb src gnome org>]

The branch 'popover' 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:

  41bb6e5... pref-manager: Use GtkPopover for "Add" options
  e03e366... vfs: Port to GMenu
  744a310... libbalsa-vfs: New API to use with GMenu
  d75335a... various: Port to new LibBalsaVfs API
  ea8ddcf... body: Add a gpointer user_data member
  d1949e0... mblist: Port the MRU menu to GMenu
  1e3a7af... Various: Adapt to MRU menu changes
  d9aa2cf... compose window: Break the attachment context menu
  3bacd30... balsa-index: Port context menu to GtkPopover
  bc4ab5c... compose window: Improve popover placement
  7856695... Bump Gtk requirement to 3.22
  e6b6656... balsa-index: Improve context menu placement
  3a41bc8... compose window: Improve context menu placement
  6fe1d1c... balsa-message: Improve the GtkPopover popup
  94b3611... compose window: Pop up the menu at the pointer
  0b38e18... balsa-message: Port another popup to GtkPopover
  7b74e24... balsa-message: Port the parts-menu to GtkPopover
  daca149... balsa-index, balsa-message: Check GdkEvent

Commits added to the branch:

  be9b2fc... balsa-message: Fix a scan-build report
  2c581dc... pref-manager: Use GtkPopover for "Add" options
  0476d94... vfs: Port to GMenu
  314a3d0... libbalsa-vfs: New API to use with GMenu
  a9ccf84... various: Port to new LibBalsaVfs API
  130f052... body: Add a gpointer user_data member
  f68fd58... mblist: Port the MRU menu to GMenu
  53b97d4... Various: Adapt to MRU menu changes
  f4502aa... compose window: Break the attachment context menu
  3ff6f92... balsa-index: Port context menu to GtkPopover
  be1b425... compose window: Improve popover placement
  2a55cfd... Bump Gtk requirement to 3.22
  d4ecafa... balsa-index: Improve context menu placement
  dc24285... compose window: Improve context menu placement
  43181ba... balsa-message: Improve the GtkPopover popup
  4d6a9a5... compose window: Pop up the menu at the pointer
  843feae... balsa-message: Port another popup to GtkPopover
  f9a5b2c... balsa-message: Port the parts-menu to GtkPopover
  bead61b... balsa-index, balsa-message: Check GdkEvent