Syntaxe updates for mod_e*.xml

Missed one.

Use more standard options syntax, as per https://issues.apache.org/bugzilla/show_bug.cgi?id=52112

Cleanup effort in prep for GA push: Trim trailing whitespace... no func change

fix typo -- two periods

mention mod_expires bailing out when the handler has set an Expires header.

Document that ExpiresActive defaults to off.

update license header text

Update the copyright year in all .c, .h and .xml files

Update copyright year to 2005 and standardize on current copyright owner line.

fix copyright notice

$Revision$ is slightly misdocumented (only available since svn 1.1) use LastChangedRevision instead

adjust properties and revision expansion of the English docs

Note that mod_expires also sends Cache-Control: max-age.

add $Revision$ keyword

fix name of The Apache Software Foundation

apply Apache License, Version 2.0

add the metafile attribute to all xml files.

- <em> -> <var> - some reformatting

Update the stylesheet reference to the new language-specific version.

Somehow I missed mod_expires in the xmlization. Here it is.