Issue: [4.1 Beta 1] Admin cp: 1) Area permissions loads global/default permissions list after save 2) Several cases of breadcrumb link wrong format

1) When editing area permissions for user groups, after submitting VW returns to the regular (global) user permissions list at admin.php?wiki/permission/.

When the intention is to edit multiple usergroup permissions for an area one after the other, if an admin is not careful then they may unintentionally alter global wiki permissions for subsequent usergroups.

It would be great if this could be altered so that admins are returned to the same usergroup list that they were looking at prior to saving.

E.g.:

• admin.php?wiki/area/&areaid=2&do=permissions -> edit permissions -> save -> admin.php?wiki/area/&areaid=2&do=permissions (not currently what happens),
  and admin.php?wiki/permission/ -> edit permissions -> save -> admin.php?wiki/permission/

2) Edit area: Breadcrumb link for "Area manager" is currently admin.php?wiki/structures/&do=area, should be admin.php?wiki/area/