0.3.1 release notes

Author: hunterowens

ReleaseNotes.md

@@ -1,3 +1,31 @@
+## 0.3.1
+
+> Released 2019-04-30
+
+This release represents a series of non-breaking changes and clarifications for provider, along with a number of agency bugfixes / changes. 
+
+**CHANGES**
+
+*_Provider_*
+* New Battery Charged event type reason. Thanks @dbaty / @bors-ltd
+* MDS Schema version fix. 
+* New release process - thanks @jfh for documenting, all for partcipating 
+* Additional Breaking / Non-Breaking Documentation
+* [Add versions endpoint](https://github.com/CityOfLosAngeles/mobility-data-specification/pull/300). Thanks @billdirks
+* [Add Agency Drop off / pick up](https://github.com/CityOfLosAngeles/mobility-data-specification/pull/291). Thanks @margodawes 
+
+*_Agency_*
+* Change from UUIDv4 to just UUID. Thanks @karcass
+* Change Error Messages for State Machine validation. 
+* Update Pagination Rules 
+* Add Unregistered event. 
+* [Add Event Diagram](https://github.com/CityOfLosAngeles/mobility-data-specification/pull/258). Thanks @whereissean
+* [Removing 412 Responses](https://github.com/CityOfLosAngeles/mobility-data-specification/pull/258)
+* Add deregister and decomissioned events. Thanks @dirkdk 
+* [Remove 5 second Telemetry requirement](https://github.com/CityOfLosAngeles/mobility-data-specification/pull/261)
+* [Improve failure and error handling around Telemetry Data](https://github.com/CityOfLosAngeles/mobility-data-specification/pull/290)
+* 
+* 
 ## 0.3.0 
 
 > Released 2019-02-15