https

Created by: srossross

• Pushed the options logic for targets and agents to from caronte.createProxyServer to common.setupOutgoing
• Added headers to options. Can now overwrite headers (see https.js example 2)
• Added https example. please review the example as I am not sure if this is the intended usage

Also you will notice that the third option raises an error and exits the node interpreter. I am not sure where this error is coming from or where it can be caught.