Allow coercion to boolean from '0' and '1'#345

JanTvrdik wants to merge 1 commit intojsonrainbow:masterjsonrainbow/json-schema:masterfrom

JanTvrdik:coerse_to_boolean_from_str_intJanTvrdik/justinrainbow-json-schema:coerse_to_boolean_from_str_intCopy head branch name to clipboard