Add the 1.8.5 changelog entry for schema update.

Author: theengineear

CHANGELOG.md

@@ -4,6 +4,19 @@ This project adheres to [Semantic Versioning](http://semver.org/).
 
 ## [Unreleased]
 
+## [1.8.5] - 2015-09-29
+### Fixed
+- Fixed validation errors (validate=False workaround no longer required)
+
+### Added
+- Auto-sync API request on import to get the latest schema from Plotly
+- `.`-access for nested attributes in plotly graph objects
+- General `.help()` method for plotly graph objects
+- Specific attribute `.help(<attribute>)` also included
+
+### Removed
+- No more *is streamable*, streaming validation.
+
 ## [1.8.3] - 2015-08-14
 ### Fixed
 - Fixed typos in `plot` and `iplot` documentations