v16
tree-wide: use fixed-width integers for user-provided values where it makes sense
launch/config.dtd: document new fields
launch: move magic numbers to front
nss-cache: cache lookup-failures
launch: move system-console-user resolver to nss-cache
launcher/config: better handle config with invalid usernames
apparmor: add skeleton support
launch: watch servicedirs and configdirs
test/nss-cache: add trivial test-case for NSS