Rename harmoniser fx to octaver - change args to oct1, oct2 and oct3
Add docs for new chorus effect
Add docs for ring mod effect
Add docs for various band-pass filters
Move effects out of incubator - (n)(r)bpf, ring_mod, octaver
Specify release date for 2.1.1
Fix live coding example.

Thanks to @nicoder for the suggestion.

Fixes #206
update license file with info about samples and examples
no longer dev! 2.1.1 here we come...
ruby symlink instructions for Mac build
Merge pull request #245 from jweather/mac-install

ruby symlink instructions for Mac build
Fix one_in to return false if num is < 1

* also coerce all input into ints by default
Merge pull request #246 from jweather/gui-cleanup

Gui cleanup
Merge pull request #220 from xavriley/new_effects_docs

New effects docs
fix server path on RPi
fix stdout redirection on Mac