Remote duplicate list_formatters from api docs

Maintain order of form fields when form_columns provided

Block for Overriding Row Actions

Add Travis-CI config for continuous integration testing

Use url/endpoint from passed in index_view if present

Use endpoint/url values from Admin() parameters instead of index_view if present.  DRY default values for AdminIndexView and Admin.init

Fixing typo

on_model_change and on_model_delete hooks

Fixes for boolean fields

Example here: https://gist.github.com/3714266

fix bug in form.py wen checking callable_default

    raise TypeError("Boolean value of this clause is not defined")
TypeError: Boolean value of this clause is not defined

see
http://www.sqlalchemy.org/trac/wiki/06Migration#AnImportantExpressionLanguageGotcha

Update README.rst

Fixed #53. It is now possible to specify field conversion classes for sqlalchemy and peewee backends.