NanoHTTPDPooled provides a simple HTTP connection pool per the recommendation at https://java.sun.com/developer/technicalArticles/Networking/Webserver/.  The intent is to offload the overhead involved in thread management from time-of-request to time-of-instantiation.  This code is based on NanoHTTPD, a thin HTTP server written in Java.

The absence of a package name is intentional:  adopt your own package name to the source.

To use:
* Add the source files to your project.  Use either NanoHTTPPooled, or AndroidHTTPD.
* If using AndroidHTTPD:
** Instantiate AndroidHTTPD from your Activity or Service as desired.
** Threading handled internally.
** Override onRequestReceived(...) with your handler code.  Or, set an application-visible folder as wwwroot.
* See https://elonen.iki.fi/code/nanohttpd/#ways-to-use for context.

This code is conveyed under the following license:

The original source for NanoHTTPD is available from https://elonen.iki.fi/code/nanohttpd/.
Copyright (C) 2001,2005-2012 by Jarno Elonen <[email protected]>
and Copyright (C) 2010 by Konstantinos Togias <[email protected]>
and Copyright (C) 2012 by Free Beachler (https://github.com/tenaciousRas/)

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:

Redistributions of source code must retain the above copyright notice,
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conditions and the following disclaimer in the documentation and/or other
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be used to endorse or promote products derived from this software without
specific prior written permission. 

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