modify navbar opacity
refactor css
refactor css
tmp commit
make uri to rankings and implement some js class and fix glaphycons bug
add jquery-pjax.js
fix window position when tab is clicked
add some functions to @Ranking
implement json api
implement proto ranking table
fix duplicate app_items bug
add googole play link
fix itc category name
remove unused space
implement dropdown selector
implement ranking header
implement lazy load
remove reservation tab