Merge pull request #3 from jihao/master

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Merge pull request #4 from jihao/master

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Merge pull request #5 from jihao/master

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Merge pull request #6 from jihao/master

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Temp commit for new order process
Commit for partial show user orders page
Fix the issue that user_orders controller missing
 Commit order process, left visual design.
sign_in and sign_up featrue v2
Merge pull request #19 from jiyaqi/login_css_feature

sign_in and sign_up featrue v2
Merge to haoji's repository
Merge branch 'jihao-master'
enable session timeout
fix bug when user newly registered and had no order info
Fix some merge error
Merge pull request #8 from jihao/master

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Merge pull request #20 from Alex-Rongzhen-Huang/master

Merge order process
alter show house image controller style
minor style twake for usblity
Merge pull request #9 from jihao/master

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