added tinychat plugin

plugins/chat/tinychat_users_

@@ -0,0 +1,49 @@
+#!/bin/sh
+#########################
+# tinychat_users_
+#########################
+# Munin Plugin to monitor the number of users a tinychat room gets.
+# Author Phil Wray ( http://www.infjs.com )
+#
+# Usage:
+# 	ln -s /usr/share/munin/plugins/tinychat_users_ /etc/munin/plugins/tinychat_users_your-room
+#
+# Get the Tinychat Room by parsing this scripts filename.
+room=${0##*tinychat_users_}
+
+##
+# autoconf
+##
+if [ "$1" = "autoconf" ]; then
+    # Check that curl is installed
+    if hash curl &>/dev/null; then
+echo "yes"
+    else
+echo "no (no curl installed)"
+    fi
+exit 0
+fi
+
+##
+# config
+##
+if [ "$1" = "config" ]; then
+echo "graph_title Tinychat Users for $room"
+    echo 'graph_vlabel Room Users'
+    echo 'graph_args --base 1000'
+    echo 'graph_scale no'
+    echo 'graph_vlabel Room Users'
+    echo 'graph_category misc'
+    echo 'total_count.label Room Users'
+    echo 'total_count.draw AREA'
+    exit 0
+fi
+
+##
+# Main
+##
+# Get current Room Users.
+tinychat_users=$(curl -s http://api.tinychat.com/${room}.json | grep -Eo 'total_count":[0-9]+' | cut -d':' -f2)
+
+# Output Room Users.
+echo "total_count.value $tinychat_users"