nickserv/vhost: Port usercloak time and assigner changes from hostserv
perl/api: Port usercloak time and assigner changes from hostserv
contrib/anope-1.9.2-convert.php: Port hostserv metadata changes
alis/main: add -showsecret flag to ALIS LIST

This will enable opers with the chan:auspex privilege to view
hidden (+s) channels in ALIS LIST by using the -showsecret flag.
help/default/alis/list: use 'secret' instead of 'hidden'
alis/main: make negation consistent
alis/main: correct missing negation
Merge pull request #325 from lstarnes1024/master

alis/main: add -showsecret flag to ALIS LIST