Replace multiple // with single /
Replace multiple // with single /

TODO investigate if we need both $wgScript & $IP here.
kaltura/mwEmbed,matsuu/mwEmbed,omridevk/mwEmbed,alexmilk/mwEmbed,safarijv/mwEmbed,vladm3/mwEmbed,panda-os/mwEmbed,FlixMaster/mwEmbed,FlixMaster/mwEmbed,abaylis/mwEmbed,kaltura/mwEmbed,joanpuigsanz/mwEmbed,alexmilk/mwEmbed,omridevk/mwEmbed,matsuu/mwEmbed,bordar/mwEmbed,panda-os/mwEmbed,vladm3/mwEmbed,joanpuigsanz/mwEmbed,bordar/mwEmbed,tanyaLibatter/mwEmbed,abaylis/mwEmbed,tanyaLibatter/mwEmbed,alexmilk/mwEmbed,slash851/mwEmbed,tanyaLibatter/mwEmbed,safarijv/mwEmbed,slash851/mwEmbed,slash851/mwEmbed,bordar/mwEmbed,tanyaLibatter/mwEmbed,safarijv/mwEmbed,panda-os/mwEmbed,matsuu/mwEmbed,bordar/mwEmbed,FlixMaster/mwEmbed,abaylis/mwEmbed,alexmilk/mwEmbed,omridevk/mwEmbed,vladm3/mwEmbed,safarijv/mwEmbed,vladm3/mwEmbed,slash851/mwEmbed,kaltura/mwEmbed,omridevk/mwEmbed,joanpuigsanz/mwEmbed,FlixMaster/mwEmbed,joanpuigsanz/mwEmbed,kaltura/mwEmbed,abaylis/mwEmbed,panda-os/mwEmbed,matsuu/mwEmbed