Merge misc file and path functions into one module

Reduced project module count by one
Don't sync local language folder to repository
Language Editor is ready for use

It's been thoroughly tested by me, but until actual translators have had
a go at it, I don't know that I'd call it "finished".  Also I still need
to write left-hand help text, but as this is not required for use, I'm
postponing it for today.

All primary edut functions have been implemented.  Usability is as good
as I can think to make it.  Edits are preserved at all costs, with
redundant autosaves implemented for both phrase and metadata editing.
Autosaves can now be loaded from the front screen, and unneeded language
files can be deleted.  Tabstop order has been fixed, and a functional
"Save and Exit" option is now provided.

(Fixes #82)