#62 provide skywalking-application-toolkit and skywalking-toolkit-activation submodule, and log4j 1.x plugin to output TraceId

1.remove webui useless demo.  2. solve webui compile issue. 3. remove old test case, waiting test scenario by docker tech. @ascrutae

add elasticsearch 5.0.1 custom edition to skywalking-storage lib. use it as data index sevice (independence process).

Fix some resources leak. Format log. Set jdk level of common lib to 1.6 . Fix some incorrect pom.xml .

2.server端程序保持不变

2.jedis插件工程，上传基本工程结构

增加新的插件skywalking-httpClient-4.x-plugin-dubbox-rest-attachment，用于适配httpClient-4.x插件，用于支持调用dubbox-rest模式提供的服务。