improve message format. eliminated '+' operator for embedding variables #365
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When I was proceeding translation for this extension, I found many JS messages where hard to translate. Using '+' operator for connecting text is easy, but this implementation way isn't better for translating these messages into other languages like Japanese. Then I replaced them into using 'replace' method and '%n' placeholder. As you know this message format is same as Magento core codes. Translators can move all placeholders into suitable place of the sentence.