Flask-appbuilder

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- New, class name change 'BaseApp' to 'AppBuilder', import like: from flask.ext.appbuilder import AppBuilder
- New, can import expose decorator like: flask.ext.appbuilder import expose
- New, Changed 'Base' declarative name to 'Model' no need to add BaseMixin.
- New, No automatic dev's model creation, must invoke appbuilder.create_db()
- New, Change GeneralView to ModelView.
- Fix, Multiple database support correction.

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- New, security cleanup method, useful if you have changed a menu's name or view class name.
- Fix, internal security management optimization.
- New, security management method security_cleanup, will remove unused permissions, views and menus.
- Fix, removed automatic migration from version 0.3.
- New, adding views has classes without configuring the views db.session, session will
be the same has the security tables.
- Fix, Security menu with wrong label and view association on 'Permission Views/Menu'.

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- Fix, js for remembering latest accordion was working like toggle (bs bug?).

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- Portuguese Brazil translations

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- Fix, possible to register on the menu different links to the same view class.
- Fix, init of baseapp missing init of baseviews list.

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- New, Python 3 partial support (babel will not work, caused by the babel package itself).
- Fix, Removed Flask-wtf requirement version limitation.
- New, test suite with nose.