Change the "label_test.bxml" file so it illustrates inserting hard-coded newlines
as well as allowing normal wrapping.

This is a merge of change 1516518 from trunk to branches/2.0.x.


git-svn-id: https://svn.apache.org/repos/asf/pivot/branches/2.0.x@1516520 13f79535-47bb-0310-9956-ffa450edef68