FEATURE: Allow events to return "none"; they can already return null,
which stops processing.

git-svn-id: https://svn.apache.org/repos/asf/ofbiz/trunk@1482130 13f79535-47bb-0310-9956-ffa450edef68
FIX: in urlEncodeArgs, don't call obj.toString if the obj is an Array or
a Collection; instead, iterate over each memeber and encode that.

git-svn-id: https://svn.apache.org/repos/asf/ofbiz/trunk@1482131 13f79535-47bb-0310-9956-ffa450edef68
FEATURE: If the user gets forcibly logged out, store a message into the
request that mentions this; currently, nothing uses this, but that is
coming soon.

git-svn-id: https://svn.apache.org/repos/asf/ofbiz/trunk@1482132 13f79535-47bb-0310-9956-ffa450edef68