New moulette command: can set max_memory variable

commands/moulette/set_max_memory.sh

@@ -0,0 +1,23 @@
+#!/bin/sh
+
+if [ -z "$1" ]
+then
+    echo "Usage: $0 <memory>"
+    exit 1
+fi
+
+if ! which gearman > /dev/null 2> /dev/null
+then
+    echo "gearman isn't installed on this machine. Please try another one."
+    exit 1
+fi
+
+cat <<EOF | gearman -h gearmand-srv -p 4730 -f moulette_get
+<?xml version="1.0" encoding="UTF-8"?>
+<process>
+  <param name="type">set_memory</param>
+  <param name="to">$1</param>
+</process>
+EOF
+
+echo