Fix problems with changes2html.pl, mostly to do with marking things as attributions when they shouldn't be, or not when they should; and fixup formatting issues in lucene/CHANGES.txt and solr/CHANGES.txt (merge branch_5x r1661782)

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/lucene_solr_5_0@1661785 13f79535-47bb-0310-9956-ffa450edef68
3 files changed