修改移动端和主站访问逻辑
	modified:   app/controllers/answers_controller.rb
	modified:   app/controllers/application_controller.rb
	modified:   app/controllers/mobile/answers_controller.rb
	modified:   app/controllers/mobile/home_controller.rb
	modified:   app/controllers/questions_controller.rb
	modified:   app/controllers/static_controller.rb
Merge branch 'mobile' of https://github.com/ProgrammerYuan/dazuoxiaoti.com into mobile