BF: usedns deals with forward (not reverse) DNS lookups (thanks Steven Hiscocks)
Merge branch 'master' into 0.9

* master:
  BF: usedns deals with forward (not reverse) DNS lookups (thanks Steven Hiscocks)
Merge branch '0.9' into _tent/jail.conf

* 0.9:
  BF: usedns deals with forward (not reverse) DNS lookups (thanks Steven Hiscocks)

Conflicts:
	config/jail.conf
Revert "ENH: by default enable a single jail -- sshd"

This reverts commit 47a62b60729e13b6811694dc52a07cb6a71cb539.

Enabling any jail by default should be a prerogative of particular
distributions (thanks Fabian Wenk for the discussion)

Conflicts:
	config/jail.conf