Currently works but needs some more work to be completed and
to refine and cleanup a few things.
With the new mode now:
- it is possible to have files as top-level entries in a project
- all directories open are on an equal basis
- application can be started without a project directory
- files from different top-level folders are identified in core:find-file
using their top-level folder name as if it was a directory. While
this works it is confusing as we are mixing real directories paths with
top level directory names this latter being an application concept
This prevents AltGr from being treated as the `alt` modkey. Previously
its default behaviour would have been overridden if the keymap had an
`alt+...` stroke bound
Francesco Abbate
Takase
Victor Gridnevsky
rxi