add /kill

Signed-off-by: Jeff Carr <jcarr@wit.com>

http.go

@@ -3,6 +3,7 @@ package main
 import (
 	"fmt"
 	"net/http"
+	"os"
 	"strings"
 
 	"go.wit.com/log"
@@ -32,6 +33,12 @@ func okHandler(w http.ResponseWriter, r *http.Request) {
 		fmt.Fprintln(w, j)
 		return
 	}
+	if tmp == "/kill" {
+		log.Warn("KILLED")
+		fmt.Fprintln(w, "KILLED")
+		os.Exit(-1)
+		return
+	}
 
 	if tmp == "/vms" {
 		s := poolHypervisor(hv)