Improve supplier settings logick

spec/acceptance_steps/suppliers/navigation_steps.rb

@@ -22,3 +22,10 @@ end
 step "I visit the supplier settings path" do
   visit "/supplier#/settings"
 end
+
+
+## ASSERTIONS
+
+step "the supplier should be redirected to the root path" do
+  ember_route.should == '/'
+end