Refactoring tests and moving code to common module

1. All tests have been converted into regular command-line mocha
   tests (instead of running in the browser), and the deployment
   script has been changed to automatically fail any `--new`
   deployment which doesn't pass.
2. Several small class (e.g., `Logger`) have been moved into a common
   module, `crafting-guide-common` so that they may be shared between
   the client and server.

src/coffee/controllers/minimal_recipe_controller.coffee

@@ -7,9 +7,9 @@ All rights reserved.
 
 BaseController         = require './base_controller'
 CraftingGridController = require './crafting_grid_controller'
-{Duration}             = require '../constants'
 ImageLoader            = require './image_loader'
-StringBuilder          = require '../models/string_builder'
+{Duration}             = require '../constants'
+{StringBuilder}        = require 'crafting-guide-common'
 
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