Release v0.4.2

Fixed a bug from v0.4.0 where the advanced search function don't work properly with options parameter.

Release v0.4.1

Changed the way we initialize the app with Flexi::Json.new rather than with Flexi::Json::Run.new

Release v0.4.0

• We are adding support to easily configured the gem's default options such as the search types' exact_match and match_all.
• We have also rename the matched_all option to match_all.