tag names, places, etc. in heaney group sheets
remove name tags for deities
updated based on feedback on pull request & discussion

* corrected the Tyrone entries so that both are linked to the county in
Northern Ireland
* tagged Pompei as a place in the phrase 'Pompeian silence'
* added a change entry to the revisiondesc
Merge pull request #1 from emory-libraries-disc/nametagging-heaney1

tag names, places, etc. in heaney group sheets