only run content end once per binding session 
only run content end once per binding session 

git-svn-id: c0b6191cc07a4792c57db861536a2f9523dc26f7@3643 b58a29cf-3064-46da-94c6-1c29cc75c8e5

DBezemer/mwEmbed,vladm3/mwEmbed,omridevk/mwEmbed,abaylis/mwEmbed,matsuu/mwEmbed,kaltura/mwEmbed,bordar/mwEmbed,SVSG/mwEmbed,abaylis/mwEmbed,FlixMaster/mwEmbed,slash851/mwEmbed,omridevk/mwEmbed,bordar/mwEmbed,SVSG/mwEmbed,panda-os/mwEmbed,joanpuigsanz/mwEmbed,abaylis/mwEmbed,omridevk/mwEmbed,alexmilk/mwEmbed,tanyaLibatter/mwEmbed,panda-os/mwEmbed,vladm3/mwEmbed,kaltura/mwEmbed,panda-os/mwEmbed,DBezemer/mwEmbed,FlixMaster/mwEmbed,FlixMaster/mwEmbed,FlixMaster/mwEmbed,tanyaLibatter/mwEmbed,matsuu/mwEmbed,abaylis/mwEmbed,DBezemer/mwEmbed,joanpuigsanz/mwEmbed,kaltura/mwEmbed,matsuu/mwEmbed,SVSG/mwEmbed,tanyaLibatter/mwEmbed,safarijv/mwEmbed,alexmilk/mwEmbed,vladm3/mwEmbed,kaltura/mwEmbed,bordar/mwEmbed,tanyaLibatter/mwEmbed,SVSG/mwEmbed,joanpuigsanz/mwEmbed,safarijv/mwEmbed,bordar/mwEmbed,alexmilk/mwEmbed,alexmilk/mwEmbed,safarijv/mwEmbed,omridevk/mwEmbed,safarijv/mwEmbed,matsuu/mwEmbed,slash851/mwEmbed,vladm3/mwEmbed,slash851/mwEmbed,panda-os/mwEmbed,joanpuigsanz/mwEmbed,DBezemer/mwEmbed,slash851/mwEmbed