Sets the maximum allowed value for the
article:list retrieves the most recent
content items that meet specified criteria. The
attribute specifies the maximum age (in hours) of the content items to
be retrieved. If the specified
from value is greater
article.list.age.max then it is ignored and
article.list.age.max is used instead.
The default value of this property is 720 hours (=30 days). You can set it to "no limit" by specifying a value of -1 This is not recommended for production sites, since unlimited queries can cause serious performance problems.