nonTaggableTags option

[dsmiley]

Sometimes when submitting HTML markup to tag, you don't want tags to enclose certain elements (also called "tags" confusingly). The elements "script" and "style" are already stripped out by Lucene's HTMLStripCharFilter. But you might want to not tag text in "a" (anchor) link elements because your application is going to insert links and doesn't want such links to interfere with existing ones (no overlaps).

I'll add a nonTaggableTags option that is a comma-delimited list of HTML element (tag) names that, if found to overlap with a candidate tagger tag, will cause that tagger tag to be omitted. For now, this option will only work when htmlOffsetAdjust is true, but could be easily modified later for xmlOffsetAdjust likewise.