Merge pull request #41 from bay6/master

filter by category
Fixed #40
Merge pull request #43 from bay6/master

filter category with district
Fixed #42
Merge pull request #45 from bay6/master

Fixed bug about there is no district
Fixed #44
Merge pull request #46 from bay6/master

district_id
Merge pull request #48 from bay6/master

style of ditrict
Merge pull request #50 from bay6/master

style of category and dstrict
Fixed #49
Merge pull request #51 from bay6/master

Fixed a problem heroku encoding problem
Merge pull request #53 from bay6/master

setup disqus for comments and style to chinse

Fixed #52
Merge pull request #54 from bay6/master

add assets to heroku
added capistrano gem support
cap support