change jdk version to 1.7

update build.gradle

Signed-off-by: mitkey <mitkey@foxmail.com>

change org.java-websocket dependent

https://github.com/TooTallNate/Java-WebSocket

use jitpack
	compile 'com.github.TooTallNate:Java-WebSocket:Java-WebSocket-1.3.3'		
		----> maven { url 'https://jitpack.io' }
replace
	compile "org.java-websocket:java-websocket:1.3.3"							
		----> maven { url "http://clojars.org/repo" }

test jitpack

0.0.1

Update README.md