[glib] (4 commits) Non-fast-forward update to branch gobject-speedups2

[Matthias Clasen <matthiasc src gnome org>]

The branch 'gobject-speedups2' 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:

  b4560e8... param: Add a value_is_valid vfunc
  251c664... param: Add g_param_value_is_valid
  8ecf667... Add tests for g_param_value_is_valid
  e8fe9d0... gobject: Use value_is_valid
  0b18d9f... Improve GObject perf test
  32ec4fa... gobject: Drop an unused quark
  bbfec6e... Simplify g_object_new_with_properties
  08ad43a... Simplify g_object_notify_by_pspec
  9d21c79... Don't inline deprecation warnings
  baf7ada... Keep a count of construct params
  75e78c1... Move deprecation warnings to object_set_property
  a536fe6... Don't copy values when collecting in g_object_new
  8d946d6... Don't copy values during g_object_set
  0f23cb5... Keep a separate flag for notify handlers
  b6192e1... Avoid property notification during object construction
  17312ee... Avoid property notification during g_object_set
  2572216... Avoid g_object_ref/unref in some cases
  60a08bc... Avoid g_value_type_compatible
  2a56083... Avoid g_param_spec_get_redirect_target
  0783cea... Avoid g_type_class_peek
  18108b7... value: Add G_VALUE_COLLECT_INIT2
  a6f6ccb... Avoid g_type_peek_value_table

Commits added to the branch:

  b49f36f... Update Basque translation (*)
  568eeda... Update French translation (*)
  aaef7f3... value: Add G_VALUE_COLLECT_INIT2
  c9edfda... Avoid g_type_peek_value_table

(*) This commit already existed in another branch; no separate mail sent