Added support in the preferences window for specifying which dhcp client, link detection tool, and route flushing tool to use. It can also be left up to wicd to decide automatically.

Made a few logic optimizations.

misc.py

@@ -35,6 +35,17 @@ WIRELESS = 2
 WIRED = 3
 SUSPENDED = 4
 
+AUTO = 0
+DHCLIENT = 1
+DHCPCD = 2
+PUMP = 3
+
+ETHTOOL = 1
+MIITOOL = 2
+
+IP = 1
+ROUTE = 2
+
 def Run(cmd, include_stderr=False, return_pipe=False):
     """ Run a command.