What's the license of flowerd, D wrapper of HTMLayout ?

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yidabu <yidabu.nospam@gmail.com>
D语言　中文支持(D Chinese Support)
http://www.d-programming-language-china.org/
http://bbs.d-programming-language-china.org/
http://dwin.d-programming-language-china.org/
http://scite4d.d-programming-language-china.org/