FreeBSD/src 57e4983 (r352560)etc/mtree BSD.tests.dist, usr.sbin/jail state.c Makefile

MFC r352263:

[jail] removal by jid doesn't trigger pre/post stop scripts

This commit fixes bug: command "jail -r" didn't trigger pre/post stop
commands (and others) defined in config file if jid is specified insted of
name. Also it adds basic tests for usr.sbin/jail to avoid regression.

Reviewed by:    jamie, kevans, ray
Differential Revision: https://reviews.freebsd.org/D21328
DeltaFile
+136-0usr.sbin/jail/tests/jail_basic_test.sh
+39-23usr.sbin/jail/state.c
+9-0usr.sbin/jail/tests/Makefile
+7-0usr.sbin/jail/tests/commands.jail.conf
+3-0usr.sbin/jail/Makefile
+2-0etc/mtree/BSD.tests.dist
+196-236 files

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