- branding fixes:
- changed full browser name from Minefield to Firefox Community Edition,
short name (ie. used in user agent) left as Minefield
- point "Release notes" link in menu to real Firefox 3.0 Release Notes
- don't load "what's new" page at startup, no such page exists for Minefield
- don't show "Welcome to Minefield" page, it says "you have succesfully
compiled trunk build" which is not true as we use stable releases
- set default home page to about: