Merge pull request #1103 from FHenry/develop_T925_ODTonTask

ChangeLog

htdocs/core/class/html.formfile.class.php

htdocs/core/lib/project.lib.php

htdocs/core/modules/modProjet.class.php

htdocs/core/modules/project/task/mod_task_simple.php

htdocs/core/modules/project/task/mod_task_universal.php

htdocs/core/modules/project/task/modules_task.php

...modules/project/task/pdf/doc_generic_task_odt.modules.php

htdocs/install/doctemplates/tasks/template_task_summary.odt

htdocs/install/etape1.php

htdocs/install/mysql/migration/3.4.0-3.5.0.sql

htdocs/install/mysql/tables/llx_projet_task.sql

htdocs/langs/en_US/admin.lang

htdocs/langs/fr_FR/admin.lang

htdocs/projet/admin/project.php

htdocs/projet/class/task.class.php

htdocs/projet/tasks.php

htdocs/projet/tasks/task.php