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/models/parser_versions/mod_version_parser_v1.coffee

@@ -11,7 +11,7 @@ ItemSlug                 = require '../item_slug'
 ModVersion               = require '../mod_version'
 Recipe                   = require '../recipe'
 Stack                    = require '../simple_stack'
-StringBuilder            = require '../string_builder'
+{StringBuilder}          = require 'crafting-guide-common'
 
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