[launchermonitor] Don't send modified updates for added/removed files
[launchermonitor] Don't send modified updates for added/removed files

Avoids bogus "modified" updates when a file appears and vanishes again
(e.g. for temporary files that are created during package installation).

sletta/lipstick,giucam/lipstick,matthewvogt/lipstick,sletta/lipstick,pvuorela/lipstick,matthewvogt/lipstick,giucam/lipstick,rainisto/lipstick,matthewvogt/lipstick,rainemak/lipstick,rainisto/lipstick,rainemak/lipstick,rainemak/lipstick,pvuorela/lipstick,giucam/lipstick,rainisto/lipstick,pvuorela/lipstick,sletta/lipstick