monitoring : improve doc (READMEs) for dependencies

monitoring/cockpit/README

+RPM dependencies :
+ * simplejson
+ * python-rpyc (to fetch data from MAE)
+ * Django-south (to migrate the DB)
+ * thrift (for LogViewer)
+ * happybase (for LogViewer)
+ * mod_wsgi
+
 *   cockpit-httpd.conf is the configuration file of Apache (httpd) for the cockpit
 *   Do not enable mod_python and mod_wsgi in the same apache process
-
+*   A working MySQL DB is required

monitoring/hbase-consumer/README

@@ -4,11 +4,12 @@ Dependencies :
     * python 2.6
     * simplejson
     * python-dirq
-    * python-messaging 
-          (see https://twiki.cern.ch/twiki/bin/view/EMI/MessagingLibraries)
-    * thrift
-    * happybase
+    * python-messaging   
+    * thrift (eg 0.8.0)
+    * happybase (eg 0.4)
 
 To set up the tables, see :
     * http://wiki.apache.org/hadoop/Hbase/Shell
     * http://hbase.apache.org/book/quickstart.html
+
+NB : python-dirq and python-messaging can be found here : https://twiki.cern.ch/twiki/bin/view/EMI/MessagingLibraries

monitoring/mae/README

+RPM dependencies :
+ * python-dirq 
+ * python-messaging
+ * simplejson
+ * python-rpyc (to send data to Cockpit)
 
-Start with : python mae-consumer.py /path/to/config.conf
+Usage : python mae-consumer.py /path/to/config.conf
 Log file is : /var/log/castor/mae.log
 
 A good place to put the metrics is /etc/mae/metrics
 
-NB : simplejson, python-dirq and python-messaging are required
-They can be found here : https://twiki.cern.ch/twiki/bin/view/EMI/MessagingLibraries
+NB : python-dirq and python-messaging can be found here : https://twiki.cern.ch/twiki/bin/view/EMI/MessagingLibraries