Merge pull request #2811 from minrk/ipc_defaults

Still more KernelManager cleanup

Finish up some more work from #2775

closes #2722

- [x] ip/transport configurables only live on KernelManager objects, not ConsoleApp
- [x] fix default ipc paths in `ipython kernel` and `ipython notebook` cases
- [x] fix ipc file cleanup in a few more cases
- [x] add `--transport` alias for all appropriate entry points

IPython/frontend/html/notebook/notebookapp.py

@@ -242,6 +242,7 @@ aliases.update({
     'ip': 'NotebookApp.ip',
     'port': 'NotebookApp.port',
     'port-retries': 'NotebookApp.port_retries',
+    'transport': 'KernelManager.transport',
     'keyfile': 'NotebookApp.keyfile',
     'certfile': 'NotebookApp.certfile',
     'notebook-dir': 'NotebookManager.notebook_dir',