chore: fix lint
feat(settings): allow disabling overriding (#118)
* feat(settings): allow disabling overriding

* test(settings): add new _fancy_ tests

* docs(settings): document false behaviour

* test: five normal thingie

* fix(tests): correct default value

* test: try thawing the value

* fix: don't use default value unless 'nil'

I don't see how to test this

* Update options.md

* Update configurator.rb

* Update indexer.rb

* update tests

* Update configurator_spec.rb

* test me travis?

* Update lib/jekyll/algolia/indexer.rb