What's Changed
* Obj tree by MarcCote in https://github.com/cognitiveailab/TextWorldExpress/pull/14
* Adding two unit test environments: simonsays and peckingorder by MarcCote in https://github.com/cognitiveailab/TextWorldExpress/pull/15
* Add serialization to TextWorldExpressEnv by MarcCote in https://github.com/cognitiveailab/TextWorldExpress/pull/16
**Full Changelog**: https://github.com/cognitiveailab/TextWorldExpress/compare/v1.0.4...1.1.0