fix syntax error :/
fix syntax error :/

closes #1

tejasmanohar/emberx-select,knownasilya/emberx-select,knownasilya/emberx-select,jeffreybiles/emberx-select,martypenner/emberx-select,thefrontside/emberx-select,thefrontside/emberx-select,seanpdoyle/emberx-select,seanpdoyle/emberx-select,mitchlloyd/emberx-select,tejasmanohar/emberx-select,arenoir/emberx-select,jeffreybiles/emberx-select,steveklabnik/emberx-select,steveklabnik/emberx-select,stefanpenner/emberx-select,arenoir/emberx-select,martypenner/emberx-select,mitchlloyd/emberx-select,stefanpenner/emberx-select,gte451f/emberx-select,gte451f/emberx-select