Fix warnings and errors in html pages reported by validator.w3.org
validator.w3.org says there are some warnings and errors for cmucl.org. Roughly:
- Warning: Add "Lang=en" to the html tag
- Warning: type attribute not needed for Javascript.
- Error:
link rev="made"
is missing some atributes - Error:
meta
to specify language is obsolete - Error:
link rel="banner"
is wrong because "banner" is not valid