Some fixes for content models that have multiple, trailing, empty PE refs (for content model extension.)
Some fixes for content models that have multiple, trailing, empty
PE refs (for content model extension.)


git-svn-id: 95233098a850bdf68e142cb551b6b3e756f38fc7@171938 13f79535-47bb-0310-9956-ffa450edef68

svn2github/xerces-c,svn2github/xerces-c,svn2github/xerces-c,svn2github/xerces-c,svn2github/xerces-c