For upgrading ZuckerDocs to release 1.4.4, please follow these instructions:
ATTENTION: This is rather hard to do - I would not recommend to do it yourself, honestly ...

1. Copy (or move) your modules/ZuckerDocs/Documents folder to a save place
2. Copy the file modules/ZuckerDocs/dms/conf.inc to a save place
3. Uninstall the old ZuckerDocs module with the Sugar Module Loader
4. Follow the chapter "Add ZuckerDocs module to your Sugar installation" in the ZuckerDocs manual
5. DON'T FOLLOW THE NEXT CHAPTER IN THE MANUAL, YOU WILL DESTROY YOUR DATA!!!!
6. Now perform the KnowledgeTree upgrade (Note: you have to do this to upgrade the database to the current level required by ZuckerDocs).
	- download the KnowledgeTree 3.0.1 release and unpack it
	- MAKE A BACKUP OF YOUR KNOWLEDGETREE DATABASE!!!!
	- use the SQL scripts in the folder "sql/mysql/upgrade" of the KnowledgeTree installation to upgrade the database
	- If you want to use KnowledgeTree, you may now install and configure it
7. Now merge your save conf.inc with the new modules/ZuckerDocs/dms/conf.inc, replacing the old settings. 
	Don't replace the whole file, as there are some new settings included.
8. Restore your saved "Documents" folder to modules/ZuckerDocs/Documents.

Note: as the versioning scheme changed from KT2 to KT3, it is not possible to access older versions of your Documents -
version history starts from scratch ...