polygon-edit: refactor Gruntfile.js
polygon-edit: fix Gruntfile.js to compile *.coffee @ src & src/models
polygon-edit: add Pref & PrefList class
polygon-edit: add polygon list with AngularJS
polygon-edit: move module definition to app.coffee
polygon-edit: add MapCtrl
polygon-edit: use dist/templates/*.html
polygon-edit: add HeaderCtrl
polygon-edit: add button handler to HeaderCtrl
polygon-edit: implement rename button in header
polygon-edit: MapCtrl now manages <svg> element
polygon-edit: disable D3.js event handling
polygon-edit: drag map with AngularJS
polygon-edit: form implementation for adding new polygon
polygon-edit: "add polygon" UI
polygon-edit: fix attribute error on polyline & polygon
polygon-edit: change selected polygon rendering (<polygon> -> <line>)
polygon-edit: draggable dot & show inner dot
polygon-edit: move CommonData (app -> services/common_data)
polygon-edit: auto save & load with localStorage