[libpeas] (3 commits) Non-fast-forward update to branch thiblahute/with-properties

[Christian Hergert <chergert src gnome org>]

The branch 'thiblahute/with-properties' 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:

  b63d167... Add peas_extension_set_new_with_properties and test valid a
  7b06b0b... Add peas_engine_create_extension_with_properties and test v

Commits added to the branch:

  936959b... extension-set: adds peas_extension_set_new_with_properties(
  65b8e1a... engine: add peas_engine_create_extension_with_properties()
  3de1e35... utils: cleanup whitespace for internal utils