Merge pull request #13 from leituo56/Dev_TuoLei

Dev tuo lei
update explore.html: use ?page=page api, improve onLoadData function
Merge branch 'dev-xiaoli'

* dev-xiaoli:
  update explore.html: use ?page=page api, improve onLoadData function
separate photo_load.js from explore.html
Merge branch 'dev-xiaoli'

* dev-xiaoli:
  separate photo_load.js from explore.html
update user_page.html, changes in photo_load.js, explore.html
Merge branch 'dev-xiaoli'

* dev-xiaoli:
  update user_page.html, changes in photo_load.js, explore.html
explore.html correction
Merge branch 'dev-xiaoli'

* dev-xiaoli:
  explore.html correction
add filter in explore.html, add filter.css
Merge branch 'dev-xiaoli'

* dev-xiaoli:
  add filter in explore.html, add filter.css
Basic Statistic API, not finished
Merge branch 'master' of https://github.com/leituo56/CMPE272-Group6 into Dev_TuoLei