ADDED: hotel search: function fetch_hotel
CHANGED:flight search

display the query result normally. [don't change anything but click
search button to see the result.]
CHANGED: SEARCH PAGE

修改了国际/国内航班搜索时的一些元素。酒店和旅馆的尚待完成。
CHANGED: TABLE flight: add attr(price).
Merge remote-tracking branch 'origin/liang'