…d is an alias until v1.0
Added ActionController::Parameters#dup to retain permit state.
…as preventing correct dup of File objects.
Nested params in `permit`
… when using #required() [Idea by @Adman55]
…son calls, you will get an empty hash on no params -- exactly what we are trying to protect against
…d, and allow you to set params to nil (used for testing)
contain the missing parameter.
Parameters object will raise a NoMethodError rather than blindly trusting the object.
remove rails development dependency and dummy app from test suite; change version requirements
depend only on actionpack and activemodel