Update jetty version to 9.2.2

David Ostrovsky

2014-09-04 98bf62004853e06bf49e048e8ccb5e6c8a571cef

 src/main/java/com/gitblit/servlet/EnforceAuthenticationFilter.java

@@ -18,8 +18,8 @@
import java.io.IOException;
import java.text.MessageFormat;

import javax.inject.Inject;
import javax.inject.Singleton;
import com.google.inject.Inject;
import com.google.inject.Singleton;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;