Document additional updates

ChangeHistory.md

@@ -10,6 +10,7 @@ Here is a link to the [Git diffs](https://github.com/krlawrence/graph/compare/v2
 
 - Added an example showing how `sack` can be used to count flight segments (hops).
 - Made the coverage of Gremlin Server its own chapter. Issue #131.
+- Added more examples to the coverage of colleactions and 'local' scope.
 - Added a section on using a TinkerGraph containing the air-route data with Gremlin Server . Issue #118
   - Added the required config files to the `sample-data` folder. Issue #118
 - Added a small section with a pointer to the latest sample data.
@@ -22,6 +23,7 @@ Here is a link to the [Git diffs](https://github.com/krlawrence/graph/compare/v2
   - `RemoteReadOnlyStrategy.java`
   - `RemotePartitionStrategy.java`
   - `strategies.py`
+- Began coverage of TinkerPop 3.4
 - Cleaned up some wording.