Log Message:
mate-notification-daemon: update to 1.26.0

Change log:

### mate-notification-daemon 1.26.0

  * Translations update
  * Update copyright to 2021

### mate-notification-daemon 1.25.1

  * Translations update
  * daemon: g_memdup is dreprecated from glib 2.68
  * engines.c: fix memory leak
  * mate-notification-properties.c: fix memory leaks
  * Remove shadow warnings [-Wshadow]
  * travis: build with mate-common-1.24.2 from repos
  * build: allow users to disable gettext support (--disable-nls)
  * Use notify_stack_destroy() instead of g_clear_object() for stacks (which are \ 
not GObjects)]
  * update resource for transifex
  * Update copyright to 2021
  * update issue template
  * applet: Resize icon size with panel
  * mate-notification-applet: avoid segfault after removing the applet
  * Group common constants in a single file
  * Add Do Not Disturb Applet
  * build: Fix make distcheck
  * Remove USE_MATE2_MACROS from autogen.sh (legacy)
  * Formatting
  * Use C-style comments
  * Remove NOTIFICATION_DAEMON_* from src/themes/standard/Makefile.am
  * Remove ENABLE_X11 AM_CONDITIONAL()
  * Don't error if X11 libs not found if X11 not forced on
  * Set layer and notificaiton
  * Implement placement on Wayland
  * Add initial Wayland backend
  * Hide X11-specific code behind ifdefs and checks
  * Remove X11 calls from nodoka-theme.c
  * Use gdk_set_allowed_backends ()
  * Support --enable-x11 and --enable-wayland
  * Include directory in warning message when failed to open themes

### mate-notification-daemon 1.25.0

  * Translations update
  * add git.mk to generate .gitignore
  * daemon: Use monotonic time instead of real time
  * Remove conversion warnings
  * build: silent build warnings for distcheck
  * Filter-out img elements from notification body
  * The body of a notification may also contain hyperlinks
  * build: do not override the default value for MATE_COMPILE_WARNINGS
  * Rewrite mate-notification-properties.ui from scratch
  * daemon: Remove warning about GTimeVal deprecation
  * build: Remove generated files