on feature #82, fixing some bugs relative to indexation :
- if i18n not used, index PK were not homogeneous between creation and deletion
- index of an attachment contained all other attachments content (for the same foreign key)
on feature #82, fixing a bug on Wysiwyg.
Image list did not display images attached to Wysiwyg but files attached to main contribution (publication)
relative to feature #82, fixing bug : in result list icon of files were no more displayed.
So, now title and description of files are indexed. Filename too.
If exist, title and description are displayed in result list.
If title does not exist, filename is displayed instead.