Implementation for Sequencer(work in progress)
Sequencer class implementation.
implementation
implementation (a little bit worked, still buggy...)
Sequencer played SMF file.

These must apply to hot fix (having big bug):
MidiOutputDevice.java, SysexMessage.java
implementation for recording track(not tested yet)
Improve JavaDocs
Confirmed the sequencer works. But more debugging is required.
Fix: Send syses message larger than maxPacketSize correctly.
Fix: ShortMessage initialization problem.
Improve: Decreased MidiOutputDevice CPU usage.
Add multi device support.
Improve collection access from multi thread.
Merge branch 'feature/implementation_for_issue_12' into develop

Conflicts:
	MIDIDriver/src/jp/kshoji/driver/midi/device/MidiOutputDevice.java
	MIDIDriver/src/jp/kshoji/javax/sound/midi/SysexMessage.java