delay getting the home dir of a user untill needed

[icewind1991]

for cache-only operations we don't actually need to know the home directory

Signed-off-by: Robin Appelman [email protected]

[PVince81]

conflict

[PVince81]

/rebase

[PVince81]

There was 1 failure:

1) Test\User\UserTest::testDeleteWithDifferentHome
Expectation failed for method name is "implementsActions" when invoked 1 time(s).
Method was expected to be called 1 times, actually called 0 times.

[szaimen]

@icewind1991 please fix the test