release notes code review additions

Author: vkovec

RELEASE_NOTES.md

@@ -6,6 +6,10 @@ NEW FEATURES
 
 * Added Maya LT Integration
 
+Replaced Maya python implementation with MEL script to use with both Maya and Maya LT.
+
+NOTE: it is no longer possible to unload the plugin using Maya's plugin manager.
+
 * Export Settings: Added option to launch 3D application after installing integration
 
 * Export Settings: Added option to export FBX as ASCII or Binary