NOTICE

STS
===
STS is written by a number of authors who retain their various copyrights.
Please check individual source files to find their associated copyright
holders. The following should be a list of all copyright holders.  All
such code is licensed under the Apache license version 2.0.

Copyright 2011-2013 Colin Scott
Copyright 2011-2013 Andreas Wundsam
Copyright 2012-2013 Sam Whitlock
Copyright 2012-2013 Andrew Or
Copyright 2012-2013 Eugene Huang
Copyright 2012-2012 Kyriakos Zarifis

STS depends on libraries in the carp branch of POX, which is also
licensed under Apache. POX can be found at: https://github.com/noxrepo/pox

STS also optionally loads the hassel network invariant checking
library as a git submodule, which is licensed under GPLv2 with a FOSS exception.
In loose terms this means that the GPL header is not "viral" for open source
projects such as this one. For further information see
http://tinyurl.com/nupxdwl and http://tinyurl.com/owdygo2