Log Message:
mate-session-manager: update to 1.24.2

Remove patches that were merged in 1.24.1, and add an upstream patch to
fix an issue where applications set to autostart couldn't be disabled.

Change log:

mate-session-manager 1.24.2

  * Translations update
  * Support xscreensaver when mate-screensaver is not available

mate-session-manager 1.24.1

  * Translations update
  * Using #include with system libraries
  * build: silent build warnings for distcheck
  * Accept Desktop Entry Specification v1.1
  * use default MATE_COMPILE_WARNINGS for stable branch
  * build: make libglesv2 optional