Merge pull request #21 from Alex-Rongzhen-Huang/master

Some bug fix and improvement on user orders page.
romeve the dropdown menu
Merge pull request #22 from jiyaqi/show_house_link

romeve the dropdown menu
home page top slider
Merge pull request #23 from jiyaqi/order

home page top slider
Merge pull request #10 from jihao/master

Update