Fix a bug
Merge branch 'master' of https://bitbucket.org/lsun/huodongrili
fix can't find city
change find city method
add  auto get urls
Add traceback.
Merge branch 'master' of bitbucket.org:lsun/huodongrili
Update readme.
Merge branch 'master' of ssh://bitbucket.org/lsun/huodongrili
Return error msg if error happens.
Merge branch 'master' of bitbucket.org:lsun/huodongrili
Remove weight for blacklist model.
Merge branch 'master' of ssh://bitbucket.org/lsun/huodongrili
Check if events are in blacklist.
Add unique constrain to city.
Add script for importing cities.