Use the innermost dirs flags only. Previously each dirs flags were
rendered inline i.e.
[x]dir1/[y]dir2/[z]dir3/
This looked bad and broke the UI. Now we only render the flags for dir3
- and render them on the left side of the cascade.
Not sure if this is ultimately the right decision - but will do for now.
Render cascading dirs on one line i.e.
> foo/bar/baz
file1
instead of
> foo
> bar
> baz
> file1
This should be useful things like java projects that have deep dir
structures.
Remove the old UI view (pre the dir arrows) as this simply isnt worth
supporting for a proof of concept. This may get added back - or not.
Add 2 new classes and move code into them from autoload:
* NERDTree. Each nerdtree buffer now has a NERDTree object that holds
the root node and will old other util functions
* UI. Each NERDTree object holds a UI object which is responsible for
rendering, getting the current node, etc
Still a fair few methods to sort through in autoload (many of which will
end up in the above classes) - need sleep though.
On some new versions of vim these files were being loaded before the
main NERD_tree.vim which was causing errors as dependencies werent
loaded in time. Move the classes into lib - so vim wont try to load them
until we tell it
