100644 blob 04429326a7d6a8a2a10aca64a2fb2f4b2de47ea8	R21BasicStackPresentation.java
100644 blob 0b22aaeb8a9060e4b2cae0d04b0e22cd49d53464	R21EditorStackPresentation.java
100644 blob 04f2b837a3da7d20ee9b86a4c718bc3f9fbb90ab	R21PresentationFactory.java
100644 blob 7bebc3185cb3f7619834f3ef663244455b782260	R21ViewStackPresentation.java
040000 tree b46b654a06a31591d7ad97599faeb15b9b9cc033	r21