修改微博分享图Bug
	修改：      app/helpers/application_helper.rb
	修改：      app/views/questions/_new_social_link.html.erb
	修改：      app/views/questions/_social_buttom_links.html.haml
	修改：      app/views/questions/_social_links.html.haml
Merge branch 'master' of https://github.com/ProgrammerYuan/dazuoxiaoti.com
修改微博分享图Bug
	修改：      app/helpers/application_helper.rb
	修改：      app/models/project.rb
	修改：      app/views/layouts/project.html.haml
	修改：      app/views/projects/_others.html.haml