Log Message:
mate-indicator-applet: update to 1.26.0

Change log:

### mate-indicator-applet 1.26.0

  * Translations update
  * applet-main: Replace GtkStock icon
  * Update copyright to 2021
  * Remove USE_MATE2_MACROS from autogen.sh (legacy)

### mate-indicator-applet 1.25.0

  * Translations update
  * add git.mk to generate .gitignore
  * build: silent build warnings for distcheck
  * applet-main: declaration of ���entry��� shadows a parameter
  * applet-main: remove unreachable-code warning reported by scan-build
  * use MATE_COMPILE_WARNINGS from mate-common