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NOTICES.txt

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+Mattermost Platform Preview 
+Copyright 2015 SpinPunch, Inc. 
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+Regular expression support is provided by the PCRE library package, which is open source software, written by Philip Hazel, and copyright by the University of Cambridge, England. The original software is available from      ftp://ftp.csx.cam.ac.uk/pub/software/programming/pcre/