Use collective.timestamp = 1.3

Author: duchenean

versions.cfg

@@ -7,7 +7,7 @@ zc.buildout = 4.1.4
 
 plonemeeting.portal.core = 2.1.11
 plonetheme.deliberations = 1.3
-collective.timestamp = 1.2
+collective.timestamp = 1.3
 collective.autopublishing = 1.1b1
 imio.webspellchecker = 1.0b7
 imio.helpers = 1.2.2