[Bug 943525] Cascade document re-renders.
Update year-in-review script

* adds added, deleted and num files to git section
* adds tracker list to bugzilla section
* adds research list to bugzilla section
[bug 951232] Break up wiki visit calls in 3 month chunks.
Overhaul year-in-review script to do JSON!!!11!!oneone!
Tweak output for year-in-review script
[bug 946746] Fix showfor close button