closing feature #4768
Merge branch 'master' into ney-feature4768

Conflicts:
	web-core/src/main/java/com/silverpeas/importExport/control/ImportSettings.java
closing feature #4768
Now, file dates can be used independently of title, subject and keywords (in other words, even if parameter POI is disabled)
Merge branch 'master' into ney-feature4768
closing feature #4768
creation date of files inside ZIP file are processed correctly according to parameter 'manual.publication.useFileDates'
Merge branch 'ney-feature4768'