Make build faster

 - Check if the bt5 is already installed, this is not a change of behaviour, just a performance improvement
 - Cache getInstalledBusinessTemplateTitleList, because it doesn't change during the build and it is a bit time consuming do it so often.
 - Use activate and install_dependency, this can make bt5 list shorter and make core relies on BT5 definitions.
 - Build should wait for updateBusinessTemplateFromUrl
 - Automatic Dependence handling updateBusinessTemplateFromUrl is invoked using activities.

product/ERP5Configurator/Document/BusinessConfiguration.py

@@ -353,8 +353,9 @@ class BusinessConfiguration(Item):
       actions and Configurator requets
     """
     kw = dict(tag="start_configuration_%s" % self.getId(), 
-              after_method_id=["recursiveImmediateReindexObject",
-                               'immediateReindexObject'])
+              after_method_id=["updateBusinessTemplateFromUrl",
+                               "recursiveImmediateReindexObject",
+                               "immediateReindexObject"])
     start = time.time()
     LOG("CONFIGURATOR", INFO, 
         'Build process started for %s' % self.getRelativeUrl())

product/ERP5Configurator/Document/StandardBT5ConfiguratorItem.py

@@ -31,6 +31,7 @@ from AccessControl import ClassSecurityInfo
 from Products.ERP5Type import Permissions, PropertySheet, interfaces
 from Products.ERP5Type.XMLObject import XMLObject
 from Products.ERP5Configurator.mixin.configurator_item import ConfiguratorItemMixin
+from Products.ERP5Type.Cache import CachingMethod
 from zLOG import LOG, INFO
 
 class StandardBT5ConfiguratorItem(ConfiguratorItemMixin, XMLObject):
@@ -61,10 +62,6 @@ class StandardBT5ConfiguratorItem(ConfiguratorItemMixin, XMLObject):
   def _build(self, business_configuration):
     template_tool = self.getPortalObject().portal_templates
     bt5_id = self.getBt5Id().split('.')[0]
-    for bt5 in template_tool.getRepositoryBusinessTemplateList():
-      if bt5_id == bt5.getTitle():
-        template_tool.installBusinessTemplateListFromRepository([bt5_id],
-                                   update_catalog=self.getUpdateCatalog(0))
 
     if bt5_id in template_tool.getInstalledBusinessTemplateTitleList():
       LOG("StandardBT5ConfiguratorItem", INFO,