Fix OPL tags in linear algebra pg files from Rochester and TCNJ

I looked at the differences in the tags using log file:

git log -p --since=2014-08-05 --author=paultpearson > gitlog.txt

I read the gitlog.txt file and tried to resolve the tagging issues manually for each file listed.  This pull request is the result of that work.  Apparently, you did some editing today (so there may be some merging required, which I do not know how to do well).  Anyway, this pull request should help fix the OPL-update problem.