2010-02-16 nicolas * Add new properties in Signature in order to trig some actions just before or just after business template update/installation 2010-02-12 nicolas * add REINSTALABLE_BT5_ID_LIST inside Signature API in order to call reinstallation of Business Templates and revert local changes. * Extend Unit Test (work on going, known bug will be fixed) Reviewed by Rafael 2009-08-04 jps * Refactored (and broken) by JPS with lots of pseudo-code 2009-04-17 ivan * Split to specific migrations using skin folders 2009-03-20 ivan * Start to refector as generic ERP5 upgrader 2009-03-12 ivan * Initial import