changelog updates

Author: matthewhanson

CHANGELOG.md

@@ -20,13 +20,23 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 - **Commons extension**: The previous 'Collections' extension is now the 'Commons' extension and allows an Item to inherit properties from it's Collection.
 - **Datetime-range extension**: Extension for providing start and end datetimes.
 - **Scientific extension**: Extension for providings links to scientific publications relating to the data.
-- **rel types**: A list of supported 'rel' types are provided for use when specifying links.
+- **rel types**: A list of supported 'rel' types are provided for use when specifying links, 'derived_from' and 'license' types added.
 - **eo:constellaion**: A new field in the EO specification to specify a grouping of platforms.
 - **stac_version**: The stac_version field is required on all Catalogs (and Collections)
+- **JSON schemas**: Added JSON schemas where they were missing.
 
 ### Changed
+- **Endpoints**: Main catalog endpoint at /stac, search endpoint now at /stac/search
 - **eo:bands**: The eo:bands field is now an array rather than a dictionary, and has been moved inside of 'properties' in a STAC Item.
 - **Catalog fields**: Catalogs have a smaller number of basic fields: id, stac_version, title (optional), description, and links. The new Collections type contains additional fields.
+- **links**: The links fields are now an array rather than a dictionary.
+- **properties**: Fields with the data type array or objects are allowed inside the `properties` in a STAC Item.
+- **description**: Description fields now allow formatting with CommonMark.
+- **assets**: Fields changed names: name to title and mime_type to type.
+
+### Removed:
+* **provider**: Provider field in Items got removed. Use Collections instead.
+* **license**: License field in Items got removed. Use Collections instead.
 
 
 ## [v0.5.2] - 2018-07-12