newbie- edited templates, mods and upgrades

[Lynne]

1. If you edit a template in a style, it stays edited in an upgrade. It does not get reverted. It also may not get upgraded automatically depending on how much you edited it.

2. Users who aren't comfortable doing edits will want automatic template edits. Those aren't always easy to write or easy to keep valid version to version. Do what is easiest for yourself.