`a` and `<f7>` are undefined

[adrianstaniec]

Hi ralesi, I am enjoying your package a lot, thanks for awesome work!

The only problem I have at the moment is two missing shortcuts from original ranger.

1. when I press a in ranger or deer mode I get the message a is undefined but in real ranger a is bound to rename file under cursor prefilled with current file name, with cursor before the extension dot like so: :rename current+filename|.txt

2. when I press <f7> in ranger or deer mode I get the message <f7> is undefined but in real ranger <f7> is bound to mkdir, and prompt for the name of new directory like so: :mkdir

Would you be willing to add that in you package?

[alphapapa]

These would be nice additions. @adrianstaniec Could you send a PR? (Not that I can promise it will be merged, of course, as I'm not the author.)

[adrianstaniec]

#204