qt 5.4.0

Closes #34876.

Closes #34929.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
qt5: update 5.4.0 bottle.
kore 1.2.1

Release of Kore 1.2.1

Closes #34954.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
kore: add 1.2.1 bottle.
doctor: check cache directory is writable.

Fixes #32304.
Fixes #34933.
kore postgresql dependency fix

This makes postgresql an optional dependency.
kore: add 1.2.1_1 bottle.