use channel but the next channel is not very clear.
so many error, why next channel is not so good...
fix bug...
commit
Merge branch 'master' of https://github.com/rainasmoon/private-radio.git

Conflicts:
	PrivateRadio/src/com/rainasmoon/privateradio/business/PlayHandlerImpl.java
	PrivateRadio/src/com/rainasmoon/privateradio/business/impl/PrivateRadio.java
	PrivateRadio/src/com/rainasmoon/privateradio/program/Channel.java