[gnome-software] (2 commits) Non-fast-forward update to branch wip/hughsie/libxmlb

[Richard Hughes <rhughes src gnome org>]

The branch 'wip/hughsie/libxmlb' 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:

  f84fb75... trivial: Allow using libxmlb as a subproject
  d7d1c99... Use the new xb_builder_fixup_set_max_depth() for a pretty d
  bc8dd88... f-subproject
  2c435fa... f-subproject

Commits added to the branch:

  3b369aa... trivial: Allow using libxmlb as a subproject
  e918c27... Use the new xb_builder_fixup_set_max_depth() for a pretty d