1.ListExhibition get data through http
1.ListArts get data through http
1.art get data through http
1.view times in art detail view get data through http
2.artist view get data through http
1.exhib detail view get data through http
1.exhib detail views adujust
2.hall detail view get data through http
1.get data from http by object id when change view
Merge pull request #5 from dengquan/master

get data through http