XWIKI-9812: Document locale event does not contain creation infirmations
* also cleanup temporary data
XWIKI-9810: Add support for generating real revision events in instance input module
XWIKI-9815: Importing unknown confluence page types with attachments triggers an error
Merge pull request #249 from ClemensRobbenhaar/XWIKI-9815

XWIKI-9815: Importing unknown confluence page types with attachments triggers error
XWIKI-9817: Confluence import: empty pages have no "bodyType" attribute