Exclude 'ja' from mozilla.org stats, expose template name

1) Expose as a comment the template name, so I don't need to check
index.php every time ;-)

2) Exclude 'ja' from $done and $adu to get a more realistic ADU
coverage (and add a warning to the footer)
Merge pull request #10 from flodolo/issue9_ja

Exclude 'ja' from mozilla.org stats, expose view's name
Issue #11: make columns sortable in global view
Issue #11: make columns sortable in global view