Prepare refactor

Signed-off-by: kim.shen <sjw_job@126.com>
Refactor and prepare 4 test

Signed-off-by: kim.shen <sjw_job@126.com>
Merge branch 'master' of https://github.com/KimShen/sissi

Conflicts:
	src/main/java/com/sissi/server/ExchangerContext.java
	src/main/java/com/sissi/server/impl/BridgeExchangerContext.java
	src/main/java/com/sissi/server/impl/ConfigServerStarter.java
	src/main/java/com/sissi/server/impl/ConfigedServerStarter.java
	src/main/java/com/sissi/server/impl/MainServerStarter.java
	src/main/java/com/sissi/server/impl/Socks5ProxyServerHandlerBuilder.java
	src/main/resources/config.properties
	src/main/resources/configs/config-server.xml

Signed-off-by: kim.shen <sjw_job@126.com>