divide fetch logic and display logic.
use Tweet.id as int not string.
refactor
remove support python3.2, try-add support python3.4
refactor for PEP8(ignore E501)
declare twinkerer.twitterapi.User
create utils
remake declare _ConvertPattern
tweet has user.
fetch user
add attribute "url"
Merge branch 'next_cmd/fetch' into next_ver