Added permit_params dsl
Pass permit_params block to params.permit
Added newlines
Updated documentation.

[ci skip]
patch #2199

Don't know what's actually causing the problem, but at least now it
doesn't break
Fix nested resource name in breadcrumbs

Fixes #2132.
update docs with better Strong Parameters examples
update Strong Parameters docs to cover associated destroy
Generate resources with permit_params hints
update checkbox-toggler.js.coffee
Update rspec to expect syntax, plus == to eq and improve rails version test inintegration/stylesheets_spec.rb plus split assets in spec/unit/asset_registration_space.rb