[dev] _PERM_SHOW for application viewing

[Marko Djukic]

Quoting "W. David Betts" <david at populus.com>:

> This patch allows applications to be hidden from users based on the
> _PERMS_SHOW permission for the application.  If a permission for the
> application doesn't exist the application is displayed so that a permison
> doesn't have to be added for every application in the system.

committed thanks!

marko

ps. please send diffs with option -u.