Update documentation of 'via_emm_global' parameter.

git-svn-id: http://streamboard.de.vu/svn/oscam/trunk@9845 4b0bc96b-bc66-0410-9d44-ebda105a78c1
Update documentation of 'via_emm_global' parameter (txt, HTML).

git-svn-id: http://streamboard.de.vu/svn/oscam/trunk@9846 4b0bc96b-bc66-0410-9d44-ebda105a78c1