GitHub #2 - Sound interface for Pushy sounds.
GitHub #2 - Change getParamValue to getName.
GitHub #2 - Adding abstract sound.
GitHub #6 - Updating copyright date.
GitHub #7 - Fixing class map.
GitHub #2 - Change NAME default value to 'invalid' for now.
GitHub #2 - Tests for AbstractSound
GitHub #2 - Adding Pushover sound objects.