big refactoring: command line options and electrum.conf options override settings in wallet file.

scripts/watch_address

@@ -1,7 +1,7 @@
 #!/usr/bin/env python
 
 import sys
-from electrum import TcpStratumInterface
+from electrum import Interface
 
 try:
     addr = sys.argv[1]
@@ -9,7 +9,7 @@ except:
     print "usage: watch_address <bitcoin_address>"
     sys.exit(1)
 
-i = TcpStratumInterface('electrum.novit.ro', 50001)
+i = Interface({'server':'electrum.novit.ro:50001:t'})
 i.init_socket()
 i.start()
 i.send([('blockchain.address.subscribe',[addr])])