Two very nice additions to the REPL that weren't mentioned in the highlights: * `Alt-e` now opens the current input in an editor. The content (if modified) wil

Two very nice additions to the REPL that weren't mentioned in the highlights: * `Alt-e` now opens the current input in an editor. The content (if modified) will be executed upon exiting the editor * A "numbered prompt" mode which prints numbers for each input and output and stores evaluated results in Out can be activated with REPL.numbered_prompt!() (basically `In[3]` `Out[3]` markers like in Mathematica/Jupyter).