Fixed reviving / killing

Reviving / killing was broken after all. Did some testing and here's a
perfect solution :)
Added CID security check to all options
Added skin changing to the survivor pages
Fixed logo link
Set the admin link to display by default ( New users may not know how to access it )
Inventory and backpack textareas (Displays from database, allows you to edit it)

For the a bit more advanced admins
Merge pull request #128 from Marcuzz/master

Fixes and additions