Open directly from dired

[petermao]

It would be nice for org-noter to be able to open a pdf+notes file directly from dired, but it looks like org-noter has to be called from a PDF or from the Org file containing the notes. This would require that org-noter (or perhaps a new function) takes a PDF or valid Org file as an argument.

Some relevant dired functions are dired-get-filename and possibly dired-get-marked-files (if one wants to open several org-noter sessions at once).