Add support for Timeout support (http backend)
diff --git a/collectd/files/backend/http.conf b/collectd/files/backend/http.conf
index 752df40..8787dbc 100644
--- a/collectd/files/backend/http.conf
+++ b/collectd/files/backend/http.conf
@@ -6,5 +6,8 @@
   <URL "http://{{ backend.host }}:{{ backend.port }}">
     Format "{{ backend.get('format', 'json')|upper }}"
     StoreRates {{ backend.get('store_rates', True)|lower }}
+{%- if backend.timeout is defined %}
+    Timeout {{ backend.timeout }}
+{%- endif %}
   </URL>
 </Plugin>