Updated all requests to support URL arguments. Now leaves most of the validation to ES and the user reading ES' docs
Updated tests to work with the new support for URL arguments
Cleanup / comments
Remove obsolete import
Added another simple data type to QueryString
Fixed 'go vet' issue
Added tests for QueryString
Fixed the remainder of compatability issues after the introduction of query URL args
Merge pull request #57 from Kaidence/add_query_parameters

Support all ElasticSearch URL query parameters