change maxidle (thnx hapepa)

git-svn-id: http://streamboard.de.vu/svn/oscam/trunk@8921 4b0bc96b-bc66-0410-9d44-ebda105a78c1
add webif change for maxidle

git-svn-id: http://streamboard.de.vu/svn/oscam/trunk@8922 4b0bc96b-bc66-0410-9d44-ebda105a78c1