support for receiving sysex messages via a varargs callback
ability to send sysex
updated readme
reorganized the examples
improved interface and documentation for RtMidi::In
improved interface and documentation for RtMidi::Out
plus misc other doc improvements (stopped documenting private classes and modules, got 100% doc coverage)
unit tests for RtMidi::Out
unit tests for RtMidi::In, improved #receive_message implementation
fixed platform detection on windows
Merge branch 'master' into dev
changed compiler errors from 'abort' to 'raise' to provide useful stack traces when rake tasks fail and clean up rspec output
unit tests for RtMidi::Build::System
releasing 0.3 version of gem