added ability to create HTTP proxy tunnel
quit immediately it we detect i2p-zero is already running (by checking for tunnelcontrol port 30000 in use)
after attempted shutdown, force shutdown after 2 seconds. this is because if there is a shutdown prior to tunnels having opened, there could be a delay of up to 20 seconds before those opening tunnels exit their sleep and start responding
added GUI tab to set up a personal eepsite (via embedded jetty)
if a new tunnel is added via the command line script tunnel-control.sh or directly via the tunnel control port, the GUI list of tunnels will reflect the addition