Test csrf token param name customization

Follow code conventions on some tests

Adding .sass-cache to gitignore template

Add test to specify that attributes from an association's conditions should be assigned without mass-assignment protection when a record is built on the association.

Get around weird missing constant error caused by AS instead of simply raising NameError, closes #477.

impact guides with no CSV fixture support

minor cleaning with new api method all

Replace LH with GitHub url for filing issues

minor cleaning

Use all in place of find(:all)

Merging 3.0.x CHANGELOGs

Serialized methods that return nil should not be considered YAML

s/javascript/JavaScript

Fix previous commit by allowing a proc to be given as response_body. This is deprecated and is going to be removed in future releases.

New test: setting response_body to a Proc should be supported.

Puts ActiveRecord::SessionStore attributes in white list, fixes #483

Fix typos in IM documentation