2.6.9:

* Fixed regressions from 2.9.1 and 2.8.6:
  - Regenerated with latest glibmm to fix several empty methods.
  - ActionGroup:add(): Fix crash in alternate property get.
  - Gdk::PixbufLoader: Correct the vfunc sequence to avoid the ABI break.
  (Murray Cumming)
* Table: Fix crash in Table_Helpers::TableList.erase(). Bug #341962
  (Paul Davis)