mate-system-monitor 1.25.0 release

Changes since the last release: v1.24.0...v1.25.0

mate-system-monitor 1.25.0

• Translations update
• procdialogs: Remove trailing spaces
• add git.mk to generate .gitignore
• Added support for actions on multiple processes
• build: silent build warnings for distcheck
• build: do not override the default value for MATE_x_WARNINGS
• Use user page on github when user email is private
• Update authors
• Remove GTimeVal deprecation warning for GLib 2.61.2+