Console exclude

Added 
   (1) a button to the first links page that allows one to toggle the exclusion status of a domain
   (2) a checkbox on the add page that allows one to specify that domains should be added excluded

Remember you can run the console as:

```
go run walker/main.go console
```

If you're running local, and you don't have any data to look at, you can add this patch to your cmd.go file

```
pc6a:~/go/src/github.com/iParadigms/walker > git diff cmd/cmd.go 
diff --git a/cmd/cmd.go b/cmd/cmd.go
index df95bbe..f86e9e3 100644
--- a/cmd/cmd.go
+++ b/cmd/cmd.go
@@ -287,6 +287,7 @@ Useful for something like:
                Short: "Start up the walker console",
                Run: func(cmd *cobra.Command, args []string) {
                        readConfig()
+                       console.SpoofData()
                        console.Run()
                },
        }
```


Per Dan's comment, using col-xs-* to format column widths. It doesn't work as well as the fixed width fields (it jitters when you toggle exclude/unexclude), but it would presumably work better on non-desktop devices.