Make view::unbindStream's event param optional
Make view::unbindStream's event param optional

fvovan/CM,tomaszdurka/CM,tomaszdurka/CM,njam/CM,christopheschwyzer/CM,alexispeter/CM,cargomedia/CM,zazabe/cm,fvovan/CM,fauvel/CM,njam/CM,fvovan/CM,alexispeter/CM,mariansollmann/CM,vogdb/cm,vogdb/cm,tomaszdurka/CM,vogdb/cm,zazabe/cm,mariansollmann/CM,alexispeter/CM,vogdb/cm,alexispeter/CM,christopheschwyzer/CM,njam/CM,christopheschwyzer/CM,vogdb/cm,zazabe/cm,mariansollmann/CM,cargomedia/CM,fauvel/CM,mariansollmann/CM,zazabe/cm,njam/CM,cargomedia/CM,tomaszdurka/CM,njam/CM,fauvel/CM,fauvel/CM,fvovan/CM,christopheschwyzer/CM,tomaszdurka/CM,fauvel/CM,cargomedia/CM