merge conflicts corrected
Delete MidiToneFactory.java
Delete SymbolFactory.java
Delete MidiTone.java
Delete MidiToneTest.java
Delete SymbolFactoryTest.java
changed time object, added beats per minute, implemented tones,
refactoring, test cases
Whole tone package implements Serializable. Added Serializable test
case. Whole tone package implements equals() method. Added extensive
equals() test cases.
added debug information with test cases
refactor, name change: NoteValue -> NoteLength
Delete NoteValue.java
tried to fix latency problems
merged and fixed merge errors