Ensure parent properties don't show up in inline decorators.
Remove inheritable_arrays, too.

This includes things like the link definitions in Roar. Those should not be
taken into an inline decorator either.
add notes to CHANGES.
move inline representer tests to inline_test.
cleanup test.
Merge branch 'inline_decorators_inherit_properties_mk2' of https://github.com/rsutphin/representable into inline

Conflicts:
	test/representable_test.rb
make inline decorator test run (merge from @rsutphin's great work).
make the inline decorator bug work in 1.8.7, too.