This patch attemps to keep activity number as low as possible during a full site reindexation. This helps CMFActivity finding activities which it can actually execute.
Prevent Folder_reindexAll activities from being executed when we know the expanded method will be blocked by pending activities : copy existing after_tags for expanded activities to the Folder_reindexAll activity when it lacks them.
Remove "module" from after_tag.
Prevent duplication of after_tag definition: expanded activities are defined after the expander tags, optionnaly with more tags appended.


git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@15237 20353a03-c40f-0410-a6d1-a30d3c3de9de