add json2huddle parser
minor code cleanups
add simple test file
removed unnecessary comments, updated README.md
Merge pull request #17 from gonwalf/huddle

added json2huddle parser
add new huddle test to "test" target
use normal package require, since the tests are invoked with an altered search path.
increment to version 1.6 and update Changelog
add build examples for FreeBSD and Raspbian. use sudo in examples.
fix reference to license file