Fixes README for opening vim with no files
Merge pull request #347 from kelaban/minor-fix-to-readme

Fixes README for opening vim with no files
move ui functions out into their own autoload

All of the autoload shit needs to be cleaned up... break it out first
continue breaking up the autoload/nerdtree god module
continue breaking down the epic autoload module

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.
Merge branch 'master' of github.com:scrooloose/nerdtree
Updating creator.vim file (this fixes #352)
Merge pull request #353 from lucascaton/master

Updating creator.vim file (this fixes #352)
fix the NERDTreeFind command - broken in recent refactoring