Move dash endpoint into the 2.0.8 release

Author: chriddyp

CHANGELOG.md

@@ -2,12 +2,11 @@
 All notable changes to this project will be documented in this file.
 This project adheres to [Semantic Versioning](http://semver.org/).
 
-## [2.0.9] - 2017-04-26
-### Added
-- Beta: Added API methods that wrap the API endpoint for managing Dash objects on plot.ly. The API interface is under `plotly.api.v2.dash_apps`
+## [Unreleased]
 
 ## [2.0.8] - 2017-04-21
 ### Added
+- Beta: Added API methods that wrap the API endpoint for managing Dash objects on plot.ly. The API interface is under `plotly.api.v2.dash_apps`
 - offline embedded plots are now responsive to window resizing when `output_type == "div"` is set in `plotly.offline.iplot()`.
 - Offline animations are now supported on Plotly Cloud.