bug #5139 :  Use the last version of OfficeOnline tool for the online edition of documents (webdav access) that fixes some bugs (with the URL of documents whose the name has non-ASCII characters).
bug #5139 :  Put the office launcher jarlib in which the bug is fixed
Feature Events/Agenda : centralized services
- using ICal4J API to handle event occurrences / import & export
- adding the event entity & repository structure
- adding a structure to develop entities and their repositories
- adding time unit conversion tools
- improving unit rounding conversion
- improving period tools
- adding a lot of stuff around useful Datable.java interface and their implementations