Bind ctrl-C to copy path to clipboard

Refs #173

spec/app/editor-spec.coffee

@@ -2212,3 +2212,8 @@ describe "Editor", ->
       edited = editor.replaceSelectedText(replacer)
       expect(replaced).toBe true
       expect(edited).toBe false
+
+  describe "when editor:copy-path is triggered", ->
+    it "copies the absolute path to the editor's file to the pasteboard", ->
+      editor.trigger 'editor:copy-path'
+      expect(pasteboard.read()[0]).toBe editor.getPath()

src/app/editor.coffee

@@ -182,6 +182,7 @@ class Editor extends View
         'editor:close-other-edit-sessions': @destroyInactiveEditSessions
         'editor:close-all-edit-sessions': @destroyAllEditSessions
         'editor:select-grammar': @selectGrammar
+        'editor:copy-path': @copyPathToPasteboard
 
     documentation = {}
     for name, method of editorBindings
@@ -1154,3 +1155,7 @@ class Editor extends View
 
     @insertText(text, select: true)
     true
+
+  copyPathToPasteboard: ->
+    path = @getPath()
+    pasteboard.write(path) if path?

src/app/keymaps/editor.cson

@@ -37,3 +37,4 @@
   'alt-meta-w': 'editor:close-other-edit-sessions'
   'meta-P': 'editor:close-all-edit-sessions'
   'meta-L': 'editor:select-grammar'
+  'ctrl-C': 'editor:copy-path'