Delegate PgUp/Down and Up/Down +Shift+AppScreen to terminal application.

After this patch, the following in the .keytab will work:

key Up+Shift+AppScreen : "appup"
key Down+Shift+AppScreen : "appdown"
key PgUp+Shift+AppScreen : "apppgup"
key PgDown+Shift+AppScreen : "apppgdown"

Patch by Tomáš Čech tcech@suse.cz

FEATURE: 267100
FIXED-IN: 4.7