Merge pull request #1 from jbclements/master

cleanup: JBC:
- added .gitignore
- moved sine-play into examples
- changed require paths to collection-relative
- a few comments
added 2 testcases to rhs.rkt just to see how rackunit works
added testcases  bytevector.rkt:bytevector-section
added test
tried to generate call-graph
tests
Create regression-tests.rkt
divided bytestring
added initial rsc3 scribble doc file
added sender funcs
added example/help files from the rsc3 help directory
added example
moved functions around and added tests to main.rkt
changed wording
deleted rsc3 scheme examples
added examples from the rsc3 scheme library
added routing using bus example
draft of effect routing code
added bus routing example usage
made a collection for oregano