Rakefile fix for travis
Rakefile fix for travis

zubietaroberto/spree_i18n,zubietaroberto/spree_i18n,welaika/spree_i18n,welaika/spree_i18n,zubietaroberto/spree_i18n,spree-contrib/spree_i18n,welaika/spree_i18n