- adding try except in the function getTitle() in DocumentationHelper_getDocumentationSectionList
- removing unused files:
* PortalTypeDocumentationHelper_getDocumentationSectionList
* DocumentationHelper_getERP5SiteDocumentationReportasODT

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@23575 20353a03-c40f-0410-a6d1-a30d3c3de9de