* registered editor with notebook model
* migrated some stuff from Interactive Editor
* display notebook and input box
* dont always filter kernels by view
* fix restore
* implement some commands
* working copy recovery/discarding
* fix tear down
* do not show last cell
* simplify notebookOptions creation
* reset text model on execute
* fix run button
* set tab name
* use differentiated notebooktype to determine kernel
* allow registering notebooks as other priorities
* conditionally register actions
* move registerAction back to top level
* fix input box message
* naming
* dont register extra repl commands for now
* use jupyter-notebook notebook type
* set scratchpad on backup recovery
* remove unused method
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