wicd-cli returns exit value 0 even when connection fails

[Ben the Pyrate]

When connecting to a network with the wicd-cli interface, it returns an exit status of zero (0) regardless of whether the connection succeeded or failed.

Normally an exit status of zero indicates that the command was successful. It would be helpful (for scripting purposes) if it would return a non-zero exit status if the connection failed.

[Pieter Leclerc (pieterleclerc-deactivatedaccount)]

Merged lp:~ben-mendis/wicd/fix-exit-status into lp:wicd