Rename App.coffee to Atom.coffee. This also required moving src/atom,spec/atom to src/app,spec/app

src/app/binding-set.coffee

@@ -0,0 +1,25 @@
+$ = require 'jquery'
+_ = require 'underscore'
+Specificity = require 'specificity'
+
+module.exports =
+class BindingSet
+  selector: null
+  commandForEvent: null
+
+  constructor: (@selector, mapOrFunction) ->
+    @specificity = Specificity(@selector)
+    @commandForEvent = @buildEventHandler(mapOrFunction)
+
+  buildEventHandler: (mapOrFunction) ->
+    if _.isFunction(mapOrFunction)
+      mapOrFunction
+    else
+      (event) =>
+        for pattern, command of mapOrFunction
+          return command if @eventMatchesPattern(event, pattern)
+        null
+
+  eventMatchesPattern: (event, pattern) ->
+    pattern = pattern.replace(/^<|>$/g, '')
+    event.keystroke == pattern