dom0/qrexec: use DEFAULT user feature of qrexec_daemon in policy parser
dom0/qrexec: use DEFAULT user feature of qrexec_daemon in policy parser

woju/qubes-core-admin,woju/qubes-core-admin,marmarek/qubes-core-admin,marmarek/qubes-core-admin,QubesOS/qubes-core-admin,marmarek/qubes-core-admin,woju/qubes-core-admin,QubesOS/qubes-core-admin,QubesOS/qubes-core-admin,woju/qubes-core-admin