release notes updated

RELEASE_NOTES.txt

@@ -3,10 +3,19 @@ Release 1.9 (01/XX/2018)
   
 - Added support for retrieving file metadata for a given experiment in 
   batches; list-experiment-files get --skip and --limit options
+- Simplified workflow and processing job management by allowing DM session user
+  to be used as default workflow and/or processing job owner
+  - Modified commands:
+    * list-workflows
+    * get-workflow
+    * delete-workflow
+    * start-processing-job
+    * list-processing-jobs
 - DM Station GUI fixes/enhancements:
   - Added support for DM_DATA_DIRECTORY_MAP environment variable; this allows
-    browsing data locally, while movind data using GridFTP third
+    browsing data locally, while moving data using GridFTP third
     party transfers
+  - Enhanced support for viewing large file metadata collections
 
 Release 1.8 (12/15/2017)
 =============================