Added log config and port config from the command line

src/main/java/org/littleshoot/proxy/HttpProxyServer.java

@@ -23,7 +23,20 @@ public static void main(final String[] args) {
                 Executors.newCachedThreadPool()));
 
         bootstrap.setPipelineFactory(new HttpServerPipelineFactory());
-        bootstrap.bind(new InetSocketAddress("127.0.0.1", 8080));
+
+        final int defaultPort = 8080;
+        int port;
+        if (args.length > 0) {
+            final String arg = args[0];
+            try {
+                port = Integer.parseInt(arg);
+            } catch (final NumberFormatException e) {
+                port = defaultPort;
+            }
+        } else {
+            port = defaultPort;
+        }
+        bootstrap.bind(new InetSocketAddress("127.0.0.1", port));
 
         /*
         final ServerBootstrap sslBootstrap = new ServerBootstrap(

src/main/resources/log4j.properties

@@ -0,0 +1,31 @@
+# Set the root loggers
+log4j.rootLogger=warn, stdout, TextFile
+
+
+# The root logger uses the appenders called stdout, TextFile and XMLFile. 
+# The default level for these loggers is OFF.
+
+# stdout is set to be ConsoleAppender sending its output to System.out
+log4j.appender.stdout=org.apache.log4j.ConsoleAppender
+
+# stdout uses PatternLayout.
+log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
+
+# TextFile uses PatternLayout as well
+log4j.appender.RollingTextFile=org.apache.log4j.RollingFileAppender
+log4j.appender.RollingTextFile.File=log.txt
+log4j.appender.RollingTextFile.MaxFileSize=50MB
+log4j.appender.RollingTextFile.MaxBackupIndex=5
+log4j.appender.RollingTextFile.layout=org.apache.log4j.PatternLayout
+
+log4j.appender.TextFile=org.apache.log4j.FileAppender
+log4j.appender.TextFile.File=log.txt
+log4j.appender.TextFile.Append=false
+log4j.appender.TextFile.layout=org.apache.log4j.PatternLayout
+
+log4j.appender.stdout.layout.ConversionPattern=%-6r %d{ISO8601} %-5p [%t] %c{2}.%M (%F:%L) - %m%n
+log4j.appender.TextFile.layout.ConversionPattern=%-6r %d{ISO8601} %-5p [%t] %c{2}.%M (%F:%L) - %m%n
+
+log4j.logger.httpclient.wire=off
+org.apache.commons=off
+log4j.logger.org.littleshoot.proxy=all