NewModificationDate property will
only be set if remote configuration file (retrieved using
Check
method) contained ModificationDate information for
specified file. When this property is filled, wodAppUpdate
can be set (through ReplaceRule
property) to verify local/remote modification date
information and replace files only if newer.
This is very convenient when files
don't contain version information, so different rules
must be used for making decisions whether files are
up-to-date or not.