Add 'age' column to display how long each portal has been controlled by its current owner.
Merge branch 'portals_list_with_age' of https://github.com/gabrielsjoberg/ingress-intel-total-conversion into gabrielsjoberg-portals_list_with_age
portals list bugfix from pull request
- ensure uncaptured portals have an age of 0 so they sort correctly
- add missing quotes to style/title for portal age