edit folder name

remove folder

- changes in grunt-jshint, add grunt-complexity and grunt-jade

- change in Gruntfile.js
- jade templates
- move folder up and down
- breadcrumb

- ui-router

- folder add
- node server backend

version with file types filters, name filter and icons

first part of project from page http://ignaszewski.pl/pl/file-manager…

…-cz-i-ogolne-zalozenia-konfiguracja-i-layout.html