changed lb into the loadbalancer

git-svn-id: http://streamboard.de.vu/svn/oscam/trunk@8767 4b0bc96b-bc66-0410-9d44-ebda105a78c1
Moved b64decode to oscam-string (to match b64encode and allow its future use without webif).

git-svn-id: http://streamboard.de.vu/svn/oscam/trunk@8768 4b0bc96b-bc66-0410-9d44-ebda105a78c1