[libsecret] (17 commits) Non-fast-forward update to branch wip/dueno/backend

[Daiki Ueno <dueno src gnome org>]

The branch 'wip/dueno/backend' 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:

  52812b9... secret-retrievable: New interface to represent read-only it
  dfac32b... secret-item: Implement SecretRetrievableInterface
  a9591cc... secret-password: Add search functions
  bc4f04f... secret-password: Add lookup_binary functions
  9071f3b... secret-password: Add store_binary functions
  9f083bf... tests: Add tests for binary variant of secret_{lookup,store
  0880251... secret-value: Add secret_value_unref_to_password
  1942098... secret-password: Mark @schema argument nullable for *v func
  4843982... secret-tool: Switch to using the simple API
  eede83a... secret-service: Move parent property setting to constructor
  6ecd966... secret-backend: New interface to represent password storage
  f283cf4... secret-service: Implement SecretBackendInterface
  367a3a8... secret-backend: Add a way to uncache singleton instance
  51a5958... secret-password: Port to SecretBackend interface

Commits added to the branch:

  d17e93e... tests: undef G_DISABLE_ASSERT (*)
  0be6357... build: Suppress compiler warning if compiled with G_DISABLE (*)
  9a8f49f... Merge branch 'wip/dueno/disable-assert-tests' into 'master' (*)
  938640a... secret-retrievable: New interface to represent read-only it (*)
  092d4ef... secret-item: Implement SecretRetrievableInterface (*)
  5fedca8... secret-password: Add search functions (*)
  bac85c0... secret-password: Add lookup_binary functions (*)
  29c1460... secret-password: Add store_binary functions (*)
  2ae6ec8... tests: Add tests for binary variant of secret_{lookup,store (*)
  a5db34d... secret-value: Add secret_value_unref_to_password (*)
  e3963ef... secret-password: Mark @schema argument nullable for *v func (*)
  6886aeb... secret-tool: Switch to using the simple API (*)
  c2aea82... secret-service: Move parent property setting to constructor
  504f030... secret-backend: New interface to represent password storage
  7c484fe... secret-service: Implement SecretBackendInterface
  f3d3cd0... secret-backend: Add a way to uncache singleton instance
  44b0f00... secret-password: Port to SecretBackend interface

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