updated documentation for release 2.3

changelog.txt

+B2SAFE module 2.3 [2014/10/30]
+Unless you need to apply the patches mentioned in the documentation, there
+is no need to recompile the module.
+- completed the implementation of the integrity check tools
+- extended the authentication mechanism to import automatically X.509 certificate DN
+- improved the EPIC client, adding more command line options, optimizing the code
+  and improving security against XML vulnerabilities.
+- added new rules: EUDATiCHECKSUMdate, EUDATeURLsearch, EUDATIntegrityCheck, EUDATVerifyCollection
+- added a script named quota_stats.py to calculate the storage stats (used space, number of objects)
+  per collection
+- added new document "tutorial" in the docs directory
+
 B2SAFE module 2.2.1 [2014/08/22]
 This is mainly a bug fix release with minor updates related to deployment, 
 test and integrity check scripts. 

rulebase/pid-service.re

@@ -233,15 +233,12 @@ EUDATGetRorPid(*pid, *ror) {
 }
 
 #
-# This function create a PID for $objPath and store its value and the checksum in the iCAT if it does not exist.
-# Otherwhise the function modify the PID.
-#
-# Environment variable used:
-#   $objPath
+# This function creates a PID and stores its value and the checksum in the iCAT if it does not exist.
+# Otherwhise the function modifies the PID.
 #
 # Arguments:
 #   *path            [IN]    Path of the source file
-#   *pid             [OUT]   PID of the source file
+#   *PID             [OUT]   PID of the source file
 #   *ePIDcheck       [IN]    Specify whether you want to search for ePID (bool("true")) or not
 #   *iCATuse         [IN]    Specify whether you want to use the iCAT (bool("true")) or not
 #   *minTime         [IN]    Specify the minimum age of the digital object before looking for ePID