Some upstream improvements regarding theme caching.  Seems to improve
overall performance noticeably when opening cinnamon menus, etc.. need
some testing
menu applet: Realize icons immediately
menu: Realize labels immediately also
Some upstream improvements regarding theme caching.  Seems to improve
overall performance noticeably when opening cinnamon menus, etc.. need
some testing
menu applet: Realize icons immediately
menu: Realize labels immediately also
Some more optimization
st-icon - recompute when icon theme changes
upstream: recompute all nodes when theme changes
Merge branch 'speed' of https://github.com/linuxmint/Cinnamon into speed
Impose max-width to recent buttons in menu