Cleanup in API of DiagramBehavior

*Modifier of externally called methods changed to protected if possible
*Kept diagram editor input for referencing diagram URI because
substitution would mean replacement with 2 fields (URI and
*Took over JavaDoc from old DiagramEditor

Change-Id: I7f1af3929dd66b6573cd02449ffa41a2b1e101c6
3 files changed
tree: d11e86352269903610cc1c08446109c35fac9f97
  1. examples/
  2. features/
  3. plugins/
  4. releng/
  5. tests/