Bucho

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- bucho shows something graphically

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- bucho becomes pluggable

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- bucho now work with Python3.
- rename `bucho.wsgi.wsgi_app` into `bucho.wsgi.application`.
- fixed: all_status return only a single status.
- fixed: bucho.command cause exception when print unicode.

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- add `bucho` console script.
- add `bucho.wsgi.wsgi_app` wsgi application.
- add `main` entry point for paste.app_factory.
- some functions show(),latest_status(),all_status() stop print text and
now return text. this is incompatible change.

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- add latest_status, all_status
- add torumemo

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- bucho can show !