[libsecret] Created tag 0.18.4

[Stefan Walter <stefw src gnome org>]

The signed tag '0.18.4' was created.

Tagger: Stef Walter <stefw redhat com>
Date: Tue Jan 19 09:26:09 2016 +0100

    0.18.4
     * Multithreading fixes [#756766]
     * Fix memory leaks [#756766]
     * Updated translations

Changes since the last tag '0.18.3':

Arash Mousavi (1):
      Add Persian translation

Christophe Fergeau (17):
      secret-item: Fix 'convenince' typo
      Fix 'attributes' typo in API doc
      test-item: Fix GError leak
      test-item: Fix GHashTable leak
      test-item: Fix string leaks
      item: Free SecreItem::value in finalize()
      item: Fix local variable leak in on_create_path()
      test-prompt: Fix GError leak
      prompt: Don't leak 'owner_name' in secret_prompt_perform()
      test-collection: Fix GError leaks
      test-collection: Fix string leaks
      collection: Fix on_create_path() leak
      Don't leak ItemClosure::collection_path
      Free CollectionClosure::collection_path when it's freed
      secret-sync: Fix SecretSync leak
      build-sys: Update valgrind headers
      Fix secret_schema_unref detection of 0 refcount

Cédric Valmary (1):
      Updated Occitan translation

Michael Catanzaro (1):
      Fix typos

Stef Walter (2):
      Add gnome.org install command to 'make upload-release'
      Bump version number