Merge pull request #1264 from verdammelt/lisp-space-age

Space Age exercise for Common Lisp
Better support for different types of Notification
Merge pull request #1230 from ebautistabar/poly_notifications

Better support for different types of Notification
Removing non-terminology

I see a lot of people copying those terms. I feel they are a bit misleading. I intently avoided quadricennial, and use a more generic sounding term, so people can think of their own terminology.
Merge pull request #1265 from markijbema/patch-3

Removing non-terminology
Modify test for identical word to include case difference

Also modify the example in a simple way to make it pass that additional
test
Merge pull request #1266 from drueck/add-anagram-test

Add test for JS anagram to reject same word regardless of case
Meetup exercise for Common Lisp.