remove rbx from travis since it`s timing out during the before_script
remove rbx from travis since it`s timing out during the before_script

slingerbv/spree_essential_cms,hakhanhphuc/spree_essential_cms,citrus/spree_essential_cms,citrus/spree_essential_cms,slingerbv/spree_essential_cms,hakhanhphuc/spree_essential_cms,hakhanhphuc/spree_essential_cms,ReserveBar1/spree_essential_cms,ReserveBar1/spree_essential_cms,ReserveBar1/spree_essential_cms