Moving new-index.php to index.php. This is pretty much done and I can't see us backin...

Moving new-index.php to index.php. This is pretty much done and I can't see us backing this out of 1.17 at this point. The UI is still a little rough (hopefullly some work coming on that soon). mySQL, SQLite support is complete. Postgres is nearly complete, Oracle as well.
Wanted to get more feedback before we branch. Please see http://mediawiki.org/wiki/New-installer_issues for known problems and to report other things.