Copyright (c) 2012-2017, www.tinygroup.org (luo_guo@icloud.com).
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 Licensed under the GPL, Version 3.0 (the "License");
 you may not use this file except in compliance with the License.
 You may obtain a copy of the License at
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      http://www.gnu.org/licenses/gpl.html
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 Unless required by applicable law or agreed to in writing, software
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 See the License for the specific language governing permissions and
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