Support more special characters in instance's 'endpoints' field.
Support more special characters in instance's 'endpoints' field.

aseTo2016/service-center,little-cui/service-center,aseTo2016/service-center,asifdxtreme/service-center,little-cui/service-center,little-cui/service-center,little-cui/service-center,asifdxtreme/service-center,aseTo2016/service-center,little-cui/service-center,little-cui/service-center,asifdxtreme/service-center,asifdxtreme/service-center,aseTo2016/service-center