Merge pull request #42 from tisdall/master

fixed issues with None-like values and autoincrement fields
Merge pull request #46 from tisdall/master

dropped 'children' restriction on info kwarg (#44)
Merge pull request #47 from tisdall/master

fixed bug introduced in last update... run tests!
Merge pull request #48 from tisdall/master

issue #43 - callable defaults are no longer used as defaults
fixed regression for aliased tables in 0.3.1

assumption that all the tables have _autoincrement_column attribute
isn't correct.
Also added a test case for it.
documentation fix: typ instead of type

Documentation incorrectly suggested using 'type' key for specifying
colander type in the model.
Colander actually uses 'typ' (probably to avoid name collision with
type builtin).
Merge pull request #50 from hadara/master

fix for aliased models (regression in 0.3.1)
Update README.rst
Merge branch 'master' of git://github.com/stefanofontanelli/ColanderAlchemy