eagerInject/eagerEject should default to definition's options

[elado]

I want to be able to define eagerInject/eagerEject on the resource deinition:

Article = DS.defineResource({
    name: 'article',
    eagerInject: true,
    eagerEject: true
})

Currently the create/destroy methods take the option only from the caller Article.destroy(id, { eagerEject: true })

[jmdobry]

Yeah, I should have added that to the global and resource configuration.