freeze index.html

adding yellow New Format status box
Update index.html

modified date
Update index.html
Update .gitignore
Update .gitignore
Update .gitignore

mbox archives are updated/concatenated by curl, so cannot be kept under version control here
putting NRC mailman archives under version control
Merge pull request #21 from greenTara/master

Merge pull request #2 from RuleML/master