Clean up reverse connection ability, remove some annoyingly redundent code.

apps/i2ptunnel/java/src/net/i2p/i2ptunnel/I2PTunnel.java

...unnel/java/src/net/i2p/i2ptunnel/I2PTunnelClientBase.java

...l/java/src/net/i2p/i2ptunnel/I2PTunnelHTTPBidirProxy.java

.../java/src/net/i2p/i2ptunnel/I2PTunnelHTTPBidirServer.java

...unnel/java/src/net/i2p/i2ptunnel/I2PTunnelHTTPClient.java

...unnel/java/src/net/i2p/i2ptunnel/I2PTunnelHTTPServer.java

...i2ptunnel/java/src/net/i2p/i2ptunnel/I2PTunnelServer.java

...2ptunnel/java/src/net/i2p/i2ptunnel/TunnelController.java

apps/i2ptunnel/java/src/net/i2p/i2ptunnel/web/IndexBean.java

apps/i2ptunnel/jsp/editServer.jsp

apps/i2ptunnel/jsp/index.jsp

history.txt

router/java/src/net/i2p/router/RouterVersion.java